Kim Kingdom and Park Kingdom are joining in an alliance by marrying their children with each other. The daughter of the Kim Kingdom, Harmony, wanted to be a warrior/soldier ever since she was young. When she became a little older at the age of 10, she asked her brother, Hongjoong, who was 12 to teach her, using her puppy dog eyes when he denied. He would teach her secretly without their father knowing since he despises his daughter and women picking up any weapons. Their father, Kim Namjoon caught them one time, and he was furious with them. Harmony argued with her father about how she is supposed to protect herself when she is alone and no guard is with her. And how she can't always depend on a male to save her. She didn't come out of her room for a week. After that, her father decided to let her train in weaponry. She was allowed to train in swords and bow and arrow with a little convincing, while learning how to be a queen. She trained for eight years.

In the Throne Room

"Greetings, father, mother" Hongjoong and Harmony greeted their parents. Their parents greeted them back.

"What did you want to see us for?" Hongjoong asked them.

"Well, we created an alliance with the Park Kingdom. In order to complete it, our children are to get married. You will be marrying their daughter, Park Sage. Harmony, you will be marrying their son, Park Seonghwa." Namjoon explained, "they will be here tomorrow. The wedding will be happening in a week."

"Okay" Hongjoong agreed since it was the girl that he likes already and meet 13 years ago.

"No, I don't want to marry a stranger," Harmony argued.

"He's not a stranger, I think you met him when you were younger" her mother, Teagan said, "besides you will like him when you meet him."

"I don't care. I already love someone else. Please, father" Harmony said. 

Flashback to 13 Years ago

Five year old, Harmony was running away from her court maids. She wasn't watching were she was going, making her bump into a seven year old Seonghwa, who was also running from his eunuchs. She fell on her bottom.

"I'm sorry, are you okay?" Seonghwa said, raising his hand towards to help her get up. Harmony looked up and saw a young boy with his hand in front of her. She grabbed his hand and he pulled her up.

"It's okay, it was my fault." Harmony said, smiling.

"She has a beautiful smile," Seonghwa thought.

"Princess!"

"Crown prince!" They heard.

"Let's make a run for it," Harmony said to Seonghwa, who nodded. They ran with their hands still together. Harmony led him to the royal garden and stopped once inside the maze-like garden.

"I think we lost them," Harmony said, catching her breath, "That was fun" she started laughing.

"It was," Seonghwa agreed, laughing with her.

"What's your name?" Harmony asked, once she stopped laughing.

"You can call me Mars," Seonghwa answered, deciding not to tell her his real name, " what's yours?"

"Mars? What a weird and cool name." Harmony said, "Mine is Harmony."

"Harmony, what a beautiful name for a beautiful girl" Seonghwa said. Harmony blushed,

"Thank you, Mars"

"Do you want to check out our maze garden with me?" Harmony asked.

"Sure," Seonghwa said. Harmony and him walked into the maze. While walking in a maze, they asked each other questions to get to know each other. After an hour, they made it out of the maze. When they stepped out, their court maids and eunuchs were waiting for them.

"I guess we didn't lose them," Seonghwa whispered to Harmony. She nodded.

"There you are"

"Looks like we have to part ways," Seonghwa said. Harmony took her hair ribbon that says her name off and placed it on his hand,

"Don't forget me okay" 

Seonghwa took his white jade norigae tassel off, placed it in Harmony's hand, "don't forget me as well"

"I won't" Harmony said and they parted ways. 

End of flashback

"You will marry and that's final!" Namjoon said, " you are dismissed."

"But father-"

"Dismissed"

"Mother" Harmony said, turning to her mother. Her mother shook her head. Harmony stormed out in anger.

"I will talk to her," Hongjoong said, before following Harmony. He caught up to her and pulled her to their secret hideout. He told her court lady and his eunuch not to follow. They sat down.

"Joonggie, I don't want to marry him" Harmony said.

"You will like him when you meet him" Hongjoong said, knowing the one she likes is Seonghwa, who is also Mars.

"But you know I like Mars" Harmony replied.

"I know, but give him a chance. This marriage will be good for our kingdom. Don't you want the best for our kingdom?" Hongjoong said.

"Fine, I will give him a chance, but my heart will always be for Mars. So not fair that you get to marry the one you like." Harmony said, finally agreeing to the marriage.

"That's fine. Who knows you might fall for him!" Hongjoong said, laughing.

"Very funny," Harmony said sarcastically.

Next Day

Hongjoong, Harmony, their parents, and a few court ladies and eunuchs were outside the palace, waiting for Park Kingdom's royal family. They saw them approaching with their carriages. The carriages stopped in front of them. The king and queen stepped out of the first carriage. Then, Sage and Seonghwa. They stepped in front of the king and queen of the Kim Kingdom.

"Greetings, King Namjoon and Queen Teagan," the King Park Seojoon and Queen Luna of the Park Kingdom greeted them. Then, they turned to Hongjoong and Harmony.

"You must be Hongjoong and Harmony. You guys got bigger since the last time I will saw you" the Queen Luna said as Hongjoong and Harmony bow to her.

"Greetings, King Seojoon and Queen Luna" Hongjoong and Harmony greeted them as Sage and Seonghwa greeted their parents. Then, they came to Hongjoong and Harmony. Sage gave Harmony a hug.

"Harmony, how have you been? I missed you." Sage said as she let go.

"Good. I missed you too Sage. It's been 13 years since I saw you." Harmony replied, "You're wearing our matching hair ribbon."

"Yea," Sage said, showing it.

"So, am I," Harmony said, putting her hair to the front to show Sage. They brought this matching hair ribbon when Sage was here at their Kingdom. Sage smiled at her before moving to Hongjoong. Seonghwa came to greet Harmony.

"Greeting, Princess Harmony" Seonghwa greeted her with a smile as he saw that she was wearing his white jade norigae tassel. He's handsome, but not more handsome than Mars Harmony thought.

"Greetings,  crown prince Seonghwa" Harmony greeted back with an attitude and a fake smile, Her brother smack her on the back gently to get her to behave without taking his off of Sage, who was talking to him. She doesn't like me much, doesn't she remembers me. I probably should've told her my real name that time. Seonghwa thought.

"Let's go inside," King Namjoon said. Everybody want inside.

Wedding Day

Seonghwa still didn't get the chance to talk and tell Harmony that he was mars since every time he tries to talk to her, she runs away from him. He was so frustrated with her, but she was cute, so he could be mad at her. Right now, he was standing next to her, they were both wearing their wedding hanbok, while Hongjoong and Sage were standing to his right. The vows are taken. They sealed the vows with bow and sipped wine from gourd grown that was handed off by Harmony's mother and Sage's mother. They didn't all drink from the same groud, Harmony and Seonghwa drink from one, while Hongjoong and Sage from another. 

At the end of the ceremony, Hongjoong and Sage were in a room with Hongjoong's parents, the same with Seonghwa and Harmony, but with Seonghwa's parents. They were doing the pyebaek.

Hongjoong and Sage's Pyebaek and Wedding night

Hongjoong and Sage were sitting far away from his parents. His parents had dates and chestnuts in their hands. Hongjoong held the end of the top layer of Sage's skirt, getting ready to catch the dates and chestnuts. Hongjoong's parents began throwing them. Sage and Hongjoong trying to catch them.  At the end, they end up catching three chestnuts, which symbolizes the number of children they have in the future.

"Yes, I will have three grandchildren," Queen Teagan said happily. Sage was glad they only ended up catching three. They were sent off to their wedding night. Hongjoong being the gentleman he is, they didn't do anything during their wedding night. They just talk and sleep, cuddling each other.

Seonghwa and Harmony's Pyebaek and Wedding night

Harmony and Seonghwa were sitting far away from his parents. His parents had dates and chestnuts in their hands. Seonghwa held the end of the top layer of Harmony's skirt, getting ready to catch the dates and chestnuts. Hongjoong's parents began throwing them. Seonghwa trying to catch them, Harmony not helping at all or joining the tradition. At the end, Seonghwa ends up catching 2 dates and 3 chestnuts.

"Oh my, I will have five grandchildren," Queen Luna said happily. Harmony wasn't happy at all, she will do anything in her powers to not have his children. They were sent off to their wedding night.

"Go easy, son," King Seojun whispered to his son, before he left. Seonghwa blushed and followed his running away wife. They got into the room with Seonghwa closing the door behind him. Harmony sat on the bed. Seonghwa sat in front of her.

"Harmony," He said as He put his hand on her shoulder. She pushed his hand off of her. She looked at him, pointing her finger at him.

"Listen here, Seonghwa. I never wanted to marry you. I already like someone else, so you won't be expecting anything from me," She said with venom in her voice, "And don't ever touch me." She turned away from him, playing with his white jade tassel. Seonghwa just smiled, loving that she is loyal.

"Even if I have this," Seonghwa said, holding up her hair ribbon with her name on it that she gave to him 13 years ago. She looked up and was shocked to see him holding up the hair ribbon that she gave to Mars.

"Why do you have that?" She asked him, being suspicious of him.

"Why do you think I have this?"

"I don't know. I gave that to Mars, the one I like 13 years ago. Unless," She answered, then her eyes widened, "You are Mars."

"Yes, I am. Mars is a nickname that I use." He explained when he was hit with force. Harmony jumped on him, hugging him, knocking him to the ground. He held her tightly.

"Why didn't you tell me?" Harmony asked inside his neck.

"Well, you never gave me the chance to. You always run away from me," Seonghwa answered, kissing her on the side of her face.

"Haha, sorry about that. I just really hated you since you were preventing me from being with Mars," She said giggling in his neck, "which ended up not being true, I was the one that was preventing myself from being with you." She let go of him, sitting up on his lap, making his hands slide to her waist.

"By the way, why didn't you tell me your real name back then?"

"I honestly don't know. I think I just wanted you to call me Mars. Only the people I love call me that."

"You love me?"

"Yes"

"I love you too," Harmony said, happily.

(A/n: Hongjoong and Sage story ends here; they may be mentioned here and there. I did what I could with the research I did on Korean weddings.)

~Timeskip: one year later~

Harmony have been living in the Park Kingdom for a year now. She was the Queen as Seonghwa took over the crown. There was a war going on with Park Kingdom and the Lim Kingdom. The soldiers and Seonghwa were getting ready to go to the battlefield. Her brother and his soldiers were going to be there as well. Harmony wanted to go and help, but knew Seonghwa wouldn't let her. He didn't even know she could wield a sword, only bow and arrow. She dressed as one of the soldiers with the help of her court lady, who didn't agree to it. She couldn't take her horse that Seonghwa gifted her since he will know, so she looked for another horse. She followed the other soldiers to the battlefield.

They have been fighting the Lim Kingdom's soldiers, who were losing. Harmony was fighting two Lim's soldiers, she killed one of them. The other one cut her on the arm, but she ended up killing him as well. The last of the Lim Kingdom's king and soldiers started retreating. The Park Kingdom and Kim Kingdom's soldiers started to cheer on their victory.

They build camp to rest before making their way back home. Harmony went inside her tent that she shared with another soldier, who was out with the others to take a bath in the lake that was near. She patched her arm up with bandages. She waited until the soldiers were back and eating their dinner, before going to the lake to bathe. She didn't realize that Seonghwa was not back yet.

She took her clothes off and stepped into the water. She started washing herself, being careful of her wound before she heard splash sounds coming from her right. She turned to see her husband. She gasped as he swam towards her.

"Harmony, is that you?" He asked, shocked, "what are you doing here?"

"Umm" Harmony said, not knowing what to say.

"Did you pretend to be a soldier and participate in the fight?" He asked her in an angry voice. He wasn't happy to see his wife in the war. Harmony looked down guilty as Seonghwa swam close to her, closing the gap between them. He grabbed her arm that had the wounds to inspect it.

"I didn't want you in the war. You will get injured, which you did." Seonghwa scolded her.

"I'm sorry, I only wanted to help too," Harmony said. Seonghwa looked at her and signed. He hugged her.

"Don't do something like this again," he said to her as Harmony hugged him back nodding, "If you want to help, you can do so at home by protecting our subjects in case we get invaded." Harmony nodded again, melting into the hug, before realizing that they're both naked. She moved away from him. He looked at her confused, before seeing the blushed on her face. Then, he realized why, making him blush as well.

"You can finish washing, I will wait for you." He said. Harmony nodded. He stepped out of the water as Harmony turned around to finish washing. He wore his clothes. After finishing, he heard her stepping out of the water and didn't turn around.

"You can turn around now," She said once she finished dressing, she let her hair out. Seonghwa held his arm out for her to grab, which she did. They made their way back to the campsite, where the soldiers were talking among themselves. They turned around when they heard footsteps. They saw their king with the queen and were shocked to see the queen here. They didn't know what she was doing here. Hongjoong stood up when he saw his sister and went to her to check if she was okay.

"Harmony, what are you doing here? How did you get here?" He asked her. He looked at her clothes to see she was wearing the soldier uniform. He looked back up at her with an angry face.

"Don't tell me you dress as a soldier and fight in the fight?" He asked in anger. She looked down guilty. He pulled her ear.

"Ow, I'm sorry, oppa" she cried in pain from her ear being pulled. Hongjoong let her ear go.

"I'm sorry about her, Seonghwa," Hongjoong apologized to Seonghwa since his sister was causing him trouble.

"It's okay,'' Seonghwa said. Hongjoong turned back to his sister with a look. Then, he saw her wound. He grabbed her arm to look at it.

"Don't worry, I'm fine" she said, pulling her arm away. He smacked her on the back of her head.

"Stop hitting me! I can behead you for harming the queen," she said to him as she hit him as well. Seonghwa watched their little quarrel with a smile.

"You wouldn't, you are an idiot," he said back. She pouted, turning to her husband.

"Seonghwa, he's being mean to me. Do something," she said, pouting at her husband.

"Okay, you both can stop fighting," Seonghwa said, laughing, "let's go, you will be staying with me in my tent. Hongjoong, you will be in her tent." Seonghwa didn't want his wife to share a tent with a random dude anymore, he wasn't happy that she was before. He grabbed her hand, pulling her towards his tent, he picked up a bowl of soup for her. They went inside as everybody else went inside their tents.

"Here eat this soup," Seonghwa said, handing her the soup once she sat down.

"What about you? You didn't eat anything,"

"Don't worry about me," he said. Harmony shook her head. She held the bowl up to his mouth, telling him to drink. He took a couple of sips to make her happy, before telling her to finish the rest. She finished the bowl and set it aside. She pushed the two sleeping bags together, before pulling Seonghwa to lay down.

"Good night, hubby," Harmony said.

"Good night, wifey," Seonghwa replied, before kissing her forehead. They held hands as they slept.

~Timeskip: 8 years later~

It has been eight years since the war incident. Seonghwa and Harmony had two sets of twins that were three years apart. The first set were a girl and a boy and the second set were girls. People were saying having twins was a curse. The Grand King and Grand Queen shut them down. Whoever said anything was arrested. This happened a one year before everybody saw that the twins were a gift since their Kingdom flourished after their birth. Harmony is five month pregnant now. Sage had one son and daughter that were three years apart as well. She was also five months pregnant too. Her, Hongjoong, and the kids were visiting them.

"Sage!"

"Harmony!"

Harmony and Sage shouted each other names, before waddling to each other. Their husbands on their tail instead they fall. They hugged each other, which was difficult due to their bumps. Hongjoong and Seonghwa greeted each other as well. The children left their parents to play together with some court ladies and eunuchs following behind them.

"I missed you"

"Me too" Harmony said as they let go of the hug. They both made their way inside the palace with their husband following them. They stopped and turned to their husbands.

"We will be fine, so you do something together or whatever," Harmony said, annoyed by their overprotectiveness, "besides, we will have our court ladies with us." They turned around and continued making their way inside the palace, leaving their husbands behind.

"What do we do now?" Seonghwa asked Hongjoong.

"Let's play tuho, I still haven't beat you," Hongjoong suggested. Seonghwa nodded, and they made their way inside as well.