The Original God of Teyvategao

(Not a harem story, it's an imaginary story about Genshin Impact, daily life but mixed with some battle plots) Travel to a strange world. There is a high school here called Teyvat High School. The students and teachers in the high school are characters in Genshin Impact. Guo Qi was very confused about which world he had traveled to? And he actually became the adopted son of Master Mao, the lonely and introverted brother Guo Qi in Xiangling's eyes.