Third POV

It been a year since (Y/n), Dazai, and Ranpo got adopted by Diana and a lot happened, like Diana thought them how to use magic without a wand, they also meet Dumbledore, Minerva, and Snape, because apparently they are Diana's friends and just like Diana, they also like Ranpo, Dazai, and (Y/n) because of their unique personalities, and the three of them also revealed to each other their new gained power, and they even pushed (Y/n) in the pool but (Y/n) dragged them too, in the end they found out that she can still transform but they catched a Cold after.

~Flasback~

"Hey guys! Look!" Ranpo called as he showed them a small hammer. "I found this in my suitcase! Along with my glasses! And not just that it can also get bigger!" Ranpo said as he make the small hammer bigger. "See!"

"I can now also make an bow and arrow appear with the use of my nullifying ability." Dazai said as he showed them his new found power.

"I can also bend the earth, fire, water and air!" (Y/n) exclaimed "but my necklace is gone, I don't know if I can still transform again." She sadly said, Dazai and Ranpo look at each other and grinned.

"Only one way to find out!" They dragged (Y/n) to the pool, (Y/n) got what they we're getting at refused. "No! No! No! I won't go swimming in the pool even though I can still transform! I don't want to catch a Cold!" (Y/n) exclaimed trying to prevent herself from fooling into the pool.

But before she knows it, she was now fooling into the pool, though before she fool in, she grabbed anything that is near her to prevent her from fooling. And to her luck it has to be Dazai and Ranpo, and thanks to her inhuman strength, she unfortunately dragged them with her in accident.

Since the pool was soo deep, (Y/n) was afraid to drown, so she thought that being a mermaid will help her and to her surprise she transformed to her mermaid form.

She look up and saw Ranpo swimming to the surface while Dazai, being Dazai stayed in the water letting himself drown and didn't even put an effort to get to the surface.

(Y/n) deadpanned under the water and swimmed towards Dazai and put him to the surface much to Dazai's dismay.

"Why did you have to drag us down with you in a cold water (Y/n)-chan!~" Ranpo whined while shivering.

"It was an accident! And besides! It's you two who started i- A-a-achoo!" (Y/n) sneezed followed by the two boys.

"See! I told you! We-we-a-a-achoo!" She sneezed again.

"We should get inside." Dazai suggested, (Y/n) and Ranpo agreed, so they run inside and got scolded by Diana for jumping into the pool in a cold weather.

~end of flashback~

(Y/n) jumped out of her bed and get dressed after she finished taking a shower.

She immediately run silently to Dazai and Ranpo's room since they share a room because their boys and their room is quite bigger than (Y/n)'s room, (Y/n) opened their curtain and window.

"Wakey wakey! Sleeping beauty!" She exclaimed as she opened their closet to get their clothes for the day.

"But it's too early!~" Ranpo and Dazai whined at the same time and pulled their blanket up to cover their head.

(Y/n) huffed and puffed her cheeks. "But today is Diana's birthday!" She exclaimed making the two boys immediately sat up from their comfy bed. "It was today?!" They asked her at the same time again, but (Y/n) got used to it, though when they first does that, it really creeped her out and it took her for awhile to get used to it.

"Yup! Now get ready! And write an invitation to Snape-san! Minerva-san! And Dumbledore-ojisan! Also, don't forget your presents!" (Y/n) replied and walked out the boys shared room to go to the kitchen to cook.

I prepared pancakes for each one of us, as I finished, I saw Gran Gran, Ranpo, and Dazai coming in.

"Good morning Gran Gran! And happy birthday!" (Y/n) greeted at they sat down to their seats and look at their breakfast.

"Thank you (Y/n). But you don't have to do this." Diana said but (Y/n) shook her head. "No! It's your birthday today! And here's my gift!" (Y/n) exclaimed and handed her gift to Diana.

"Here's ours too!" Dazai and Ranpo handed their gifts to Diana as well.

Diana opened (Y/n)'s gift first and found a red scarf. "Thank you (Y/n)." Diana said as (Y/n) nodded and clapped in happiness.

Diana opened Ranpo's gift this time and found a picture of the four of them, but it's not an ordinary picture, it's a moving picture, he asked Dumbledore to help him find a gift that Diana will surely love. "Thank you Ranpo, I will put this in my room." Diana smiled.

And the last but not the least, she opened Dazai's present and found a lucket, inside the lucket she found the picture of the four of them. "I noticed that you didn't have any jewelry so I thought that I'll give you a lucket." Dazai explained, as Diana smiled. "I like it. Thank you." She thanked him.

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~time skip~

It was almost dinner and (Y/n) was preparing their dinner while Dazai and Ranpo was playing wizard chess with Diana as their opponent.

But then suddenly their doorbell ringed. "Coming! Coming!" Diana shouted as she stood up, stopping their game of chess and opened the door only to be surprised to who is outside.

"Happy birthday Diana." Minerva greeted, Diana smiled at them. "Thank you. Please come inside." Diana said as she let them in.

Dumbledore, Snape, and Minerva saw Dazai and Ranpo glaring at each other while playing the wizard Chess, since Diana was not playing anymore.

"This is the first time I saw them this serious." Dumbledore said.

"They're like that when playing wizard Chess, I don't know why though." Diana sighed as Minerva patted her back.

"Checkmate. You lose again." They heard Ranpo said. "Wha-! This isn't fair!" Dazai stood up. "You cheated!" Dazai exclaimed.

"I'm not!" Ranpo retorted, but Dazai didn't listen and run to where (Y/n) is. "(Y/n)! Ranpo is being mean again! He even cheated in the wizard Chess!" Dazai whined.

"I said I didn't cheat!" Ranpo exclaimed as he run after Dazai.

"This is ridiculous, they just fight over a silly wizard Chess." Snape sighed while shaking his head. "Don't be like that Severus, their still a child." Minerva defended, they then heard Diana chuckling.

"Actually, they aren't fighting." She said confusing them. "What do you mean Diana?" Dumbledore questioned as the sat on the couch.

"They aren't fighting because of the Chess, they only did it to gain (Y/n)'s attention to them." Diana explained as they finally understand since they also knows that Ranpo, (Y/n), and Dazai are not from the universe that they are living right now and they didn't know that they aren't siblings except for Diana, but they also didn't know that they are older than they look, including Diana, she didn't know it because they forgot to mention it.

"Oh! You came!" They turned around and saw (Y/n) who had a big smile. "Come on! Dinner is served!" She exclaimed as she lead them the way.

"Enjoy!" (Y/n) said after they sat down.

They eat the delicious food happily together.

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