Genshin impact: Cosmos in the quantum sea

The theater of the Imaginary tree

"Hehe... Mei-Senpai is so soft..." Kiana whispered as she hugged Mei while Adam and Carole looked at the two of them.

"So... this is the true nature of the great hero, Kiana Kaslana..." Carole whispered while Seele and Bronya smiled as they approached the four. 

"Hmm, Lingrin, your stance is too tense, Relax," A familiar voice for the four veterans echoed in the room as the six prepared their weapons. Kiana was already dressed in her Princess of Finality Battlesuit with a cloak around her shoulder and fur around her shoulders. 

A statue of a young girl of 12 holding a sword in a familiar sword stance used by the members of house Crozzo can be seen with another statue of a man sharpening a sword on top of a tree stump. The young man wore form-fitting armor with pauldrons far more suited for colder climates. 

"But, Shifu! Your sword stance is like this!" The voice of a pre-teen echoed as a chuckle from the young man echoed in the area. 

"That's because my style is more of a defensive one and my body is more durable than yours," The masculine voice explained. "You are smaller and less durable than I am so your style must be focused more on avoiding hits," 

"What was that?!" Carole asked with a curious sparkle in her eyes while Adam looked curious but more reserved. An act that made Bronya raise a brow at how familiar it was. 

The area around the group blurred revealing the imaginary tree alongside the numerous members of House Crozzo. 

Reinhardt, Reese, Elysia, and Mobius stood with each other while Sakura and Kallen approached them. Reinhardt, dressed in the standard officer uniform, helped Rita stand up while Rin smiled as she dusted off her skirt combined with the officer uniform and winked at Adam while looking around. 

"Welcome to the imaginary tree," A voice belonging to a child aid as the group stood ready for a fight as a child of 8 smiled at them. Crozzo dark hair with purple starry eyes gazed fondly at the group. A familiar sword, held in a sheath with her black dress that was eerily familiar to Kiana's Finality attire. She looked a lot like...

"Oh my god! It's a baby class rep!" Kiana shouted with a smile, ignoring Senti's 'Hey!' while she approached the child. "Hello, mini class-rep!" Kiana said with a smile, a smile mirrored by the child. "I'm Kiana and you are?" 

"I'm Reena!" The girl said with a smile. "Welcome to the theatre of the imaginary tree!" 

"Oww..." A pink-haired girl rubbed her head as she landed on the ground as a dog and a gray-haired boy with a girl that was more of a doll landed near them followed by Dan Heng, March. 

"Himeko!" Kiana, Mei, Bronya, Reve, and Seele cried out, hugging Himeko. the red-haired woman looked confused as the group hugged him while crying. 

"No welcome for me?" Welt Yang asked with a teasing smile. 

"Uncle Welt," Reinhardt greeted as he nodded at Welt. 

"Hey, grampy!" Reese said with a smile. 

"So, this is your specialty?" A female voice asked as a statue appeared in front of the group. It was a statue of a beautiful young woman dressed in a kimono. She held a pink fox in her arm as another statue appeared. 

A statue of two, a young woman with billowing sleeves and a young man with features similar to Reve and Rein. The young man was seated on a stool while glancing at the young woman. 

"Yup! The manipulation of reality through sounds, pioneered by the Dwemer, the dwarves of old," The young man's voice said as the statues disappeared only to reappear in different positions. 

The statue of the young man was now standing beside the young woman in a kimono as she now took his seat, looking at each other with smiles on their faces. A sight that made Kiana's heart clench but shook it off in confusion. 

"Hey! He looks like Daddy and Uncle Reve!" Reese shouted as she approached the statue, standing on a stone pillar that appeared, and looked at the face closely. "Daddy! it's the same person from the archives!" 

The statues suddenly disappeared as Reena appeared, catching Reese with a smile. The statues then reappeared, changing to the same statue of the young man holding the sea figure of a woman around a roaring battlefield. 

"Mako! Mako! damn it! Don't you dare close your eyes!" The young man's voice echoed in the entire area. 

"R...Rex-kun... I guess..." 

"Don't talk! Focus! Save your strength..." 

"Fufufu, dearest champion," The voice of the will of the Honkai echoed, a certain softness and tenderness present as if she was talking to her child. "I can save her, my child. No consequences, After all, you are the only child of mine to..." Kiana prayed and begged that the man should not take the offer after all, it was too risky. 

"Do it... please... I can't lose her," the young man begged, and hearing the pain in his voice, Kiana cried soft tears. Only wanting to hug him gently... 

"What an impatient child..." The will of the Honkai said and soon the woman in his eyes changed forms, now dressed in the white wedding dress of the Herrscher. "She now holds half of your authority, Cosmos," 

The statues then moved as The young woman smiled at him, a face that resembled Mei now shown as the bare, colorless, statues were now filled with color and life. Her white dress was filled with a starry pattern. Her purple eyes looked at the young man with warmth and joy. 

The statue of the young man became colored, revealing dark hair similar to the members of house Crozzo. Shaved on the sides with a ponytail and a clean-shaven face. A pair of pale-yellow eyes glowed with warmth despite the evil-looking color. He wore a black suit that matched the dress she wore with a steel-forged Crozzo-style sword on the ground beside him. 

"What happened to your eyes, Rex-Kun?" Hearing the name made the group other than the rest of the astral express crew, Herta space station, Adam, and Carole, look at Senti. Senti smiled with pride as she looked at Rex. A soft smile appeared on the statue as they changed with the woman's statue caressing his cheek while the statue of Rex held her hand and leaned towards it while smiling at her. 

"To know the story, we must go to the beginning," Reena said as she set Reese down and held out a beautiful pin. "Please, spin a thread of memory for me," Reena said, begging them to do so as she presented the pin to the group. 

Seeing this, Elysia's eyes widened as she recognized it. The pin she was supposed to give to her first student. A if something opened her mind, the young woman remembered something, a young boy that she read stories to beside his older brother while the eldest slept with his head on her shoulder. 

'Hey, big sis Ely! If you marry Rein, you can be my sister legally!' 

"Rexie..." Elysia whispered as a tear fell from her eyes as she touched the pin.