King Gustav requested Alfonse, Sharena, and Anna return to the castle. Eir was with them, so she went back too. Anna, Eir, and Kiran, stayed back so Anna and Kiran could keep an eye on Eir.

In the throne room, was King Gustav, Queen Henriette, and three people that didn't look familiar to neither the royal family, nor the Order of Heroes.
"Alfonse, Sharena, I'd like to introduce you to some people." Gustav said. "There's a new threat on the rise and we thought the Order of Heroes could use an 'army'"

"This is Sienna." Henriette said while the blonde girl turned around. Her hair was long, straight, and Sharena took note of the cute bows in Sienna's hair.
"It's nice to meet you. I've heard a lot of great things from Queen Henriette here." She said. Sharena wasn't paying attention, however. She was looking at Sienna's clothes.
"If you don't mind me asking," Sharena started, "are your clothes from the World of Awakening?"

"Huh? I don't think I follow."

"Sharena takes a fancy to new heroes." Alfonse told them, "She loves to capture every detail that a hero has and remembers it vividly."

"Do NOT!" Sharena groaned.

"Now," Queen Henriette said, "These two are named Collin and Willow."

"I'm sure you two can guess which one is which." Collin said.

Suddenly, a woman ran in the throne room. She had short brown hair and wore an eyepatch.
"Milord! Milady! Enemy invasion!" She said.

"Thank you, General." King Gustav said. Then, he turned to Alfonse, "Alert the Order of Heroes, immediately. Let them know about this threat."

Alfonse and Sharena made their way out of the throne room. Then he turned to Sienna, "You and your friends coming along?"

"Right." She nodded. Collin and Willow were right behind her.

As the Order of Heroes fought off the enemies, Anna took note that Sienna had a sword on hand. She also noticed Collin was armed with a lance, and Willow used a tome. The battles were getting harder and harder, and Eir noticed some of the enemy units weren't from Hel. As a matter of fact, none of the enemy units were recognizable and none of them used weapons that anyone was familiar with.

It didn't matter, because Kiran was able to summon heroes and they took care of the mysterious enemies.

Then, a mysterious figure appeared. Whoever it was, they looked pretty scary. It was then, that Eir took a moment to hide behind Kiran, so that she couldn't be seen.
"Tell me, who are you?" Alfonse asked.

"I am Hel. I am death itself." The mysterious figure said. Their voice revealed Hel as female.

"Get ready everyone!" Anna said. "These battles have been tough, but this one is going to be even tougher!"

"What can we do?" A voice asked. The voice came from Princess Veronica of Embla and Loki, who previously served Múspell.
"Not sure what you two are doing here, but we could use some help." Alfonse said.

"Kiran! Anything I can do to help?" Sienna asked.

"I'm not sure," Kiran replied. "Is there any reason why you ask?"

"I was just wondering if you need help with a plan. I know my way around a battle."

"So, your a tactician too?"

"I don't mean to brag, but yes, I am!"

"Great, let's work on a battle plan together."

As the end of the battle drew closer, Alfonse and Sharena encountered Hel. Out of nowhere, Líf and Thrasir rushed into the battlefield. Líf quickly attacked Alfonse and Thrasir opened up a chasm, which opened into the bridge between Askr and Hel. In front of Alfonse was Hel and her scythe around Sharena's head. Alfonse realized he was in some sort of tar, and he rushed to save Sharena. Then, Hel swung her scythe at Sharena and she lost consciousness. Alfonse was too late. Suddenly, the tar began to move up around him. He would've drowned if Kiran didn't fire Breidablik and she scooped him out of there.
"Quick! They retreated!" Anna ordered. "We should get out of here while we still can!"

Alfonse was speechless. His sister died right in front of him. He had no choice but to retreat.