To create Honkai Impact 3rd in a world where Kallen exists.

The following words were said to be from an unknown civilization, but none of the people present could hear them clearly.

It's remarkable that Dr. Tesla, in addition to his rigorous experiments, was also proficient in such a niche language.

...

...

Black Seele returned to her room, and this time, she was unusually dejected, pacing slowly around the room.

"The result was a complete mess."

"No matter what I do, things don't go as planned; everything is different from what I imagined..."

"He even said those kinds of things to his older sister and then took his anger out on Boruto's lobster-headed mecha..."

"What have I been doing all this time...?"

She sat on the bed, her mind wandering, thinking about all sorts of things.

He was worried that Seele's opinion of him might change; after all, they had only spent one day together, and he had already made a complete mess of Seele's life, which was really disheartening.

Clearly... clearly I didn't want to change Seele's life.

At most, it should have just been about expelling some insignificant people, but it turned out like this…

"Seele must be very disappointed in me."

"well……"

She was inevitably disheartened and dejected.

Suddenly, she noticed something: a note left on the table, seemingly for her.

Curious, she picked it up, intending to take a closer look at what was written on it.

"Open the drawer..."

She was a little confused, but decided to follow the instructions on the note and opened the drawer below to look inside.

Inside, a delicious cake sat quietly, waiting to be discovered, along with a letter.

"This...this is! The cake that Seele brought back yesterday!"

She seemed somewhat surprised, as if she hadn't expected it, and then picked up the paper.

“There’s another letter…this piece of paper was torn from Seele’s diary,”

"Is this what she was writing yesterday?"

Black Seele couldn't quite understand, but she felt a burning sensation in her heart, a warm feeling flowing through her body.

So... she still cares about me.

To Seele:

"Hehe, you were startled, weren't you?"

"This is the first time I've communicated with you through a letter, even though we've always lived in the same body and are familiar with each other's every thought... but precisely because of this, it's more difficult for us to express certain things in a more direct way."

"So, I wanted to use this method to formally say thank you!"

"Thank you for taking care of me all this time. Thank you for being tolerant of my weaknesses, timidity, and hesitation."

"Because of you, I've had the courage to get to where I am today. You are the most indispensable and irreplaceable person in my life!"

P.S.: This cake is so delicious, I wanted to share it with you the moment I took my first bite!

[Hiss—, is this Seele? Terrifying!]

Both Black Helios and Bronya are firmly under her control; it's terrifying!

This is the art of language!

According to a woman who wished to remain anonymous: "I cried so much watching this episode when I was a child."

[The Lawbringer of Knowledge: It's fake, absolutely fake! How could such a person exist in the world? More importantly! Why haven't I encountered one!]

"..."

Hei Xi'er looked at the contents of the letter, feeling a little shy and touched, but even more eager to continue reading, word by word.

Those warm words flowed through her heart, gradually softening her strong exterior.

Upon reading the final words, she instinctively picked up the cake with both hands, and began to savor it earnestly with a fork in the other.

Under the moonlight, her eyes were lowered, her scarlet eyes filled with emotion. Her black hair obscured her beautiful face, and a blush gradually spread across her cheeks.

Even her ears held a hint of shyness, and beneath the dark red armor, her white skin revealed a touch of allure.

Despite her struggles, she kept speaking, word by word, as she painstakingly played the role of a protector and a strong figure.

"Seele...you idiot, you idiot!"

"What? You made me worry for so long, only to find out I completely panicked!"

"What? You think you can bribe me with a piece of cake? How naive!"