Genshin Impact: My Little Sister Turned into Nahida

P.S. This book combines the worlds of Honkai: Star Rail and Genshin Impact. The story mainly takes place in Teyvat at first, then later ventures into the universe, where the characters encounter the Astral Express. You don't need to have played Genshin Impact or Honkai: Star Rail to enjoy the story. I'll explain things in the comments.

This story follows two narrative threads about Zhang Yuan, a socially anxious shut-in who transmigrates to Teyvat with his younger sister. The plot will diverge significantly, offering a very different journey through Teyvat. Zhang Yuan falls from beyond the world and accidentally obtains a Chinese gacha game System. What's more, he discovers that his younger sister from his previous life is actually Nahida, Teyvat's former God of Wisdom.

But after spending some time together, he realizes something seems off about this System... Actually, it's not just the System. Even his sister is acting strange.

Nahida: “Hey, big brother, let's go tear down Barbatos's statue!” Something's off. This is obviously not right!

Ganyu: “If it's Lord Barbatos's statue, I'm sure he won't mind.” Wait, Ganyu, how did you even come to that conclusion?!

Qingque: “Though I really miss my home, the Luofu, there's no Diviner here... Slacking off is just too good!”

Over the course of this journey, it's not just his strength that grows. After all, becoming an Aeon takes more than just strength.

I'm not good at writing blurbs, so please read the story itself and let me tell it all in time.

(This story has multiple heroines, but the cast won't grow indiscriminately.)