The Traveler's Many Secret Identities

My name is Ying, and I currently have amnesia. All I remember is that I'm a Traveler looking for my brother. A piece of Emergency Food named Paimon came to me and said that if I bound myself to this Teyvat secret identity roleplaying System, I could find my brother? Ridiculous. Do I look like someone who can be bought that easily? The golden-haired nun at Jujutsu High sings with a healing power in her voice, The finest bard plays a song from the heavens in Yokohama, Mondstadt's Darknight Hero walks among the wine merchants, Snezhnaya's toy salesman breaks through the cold of the Ubuyashiki estate, The boy from Wolvendom joins JOJO to put an end to a century-old feud, Wherever the Guardian Yaksha goes, evil spirits and defilement are no more, The Kreideprinz continues his research wherever he may be, Rex Lapis continues his leisurely travels through the mortal realm in this world, They all come from a place called Teyvat, A continent where the Heavenly Principles reign supreme, and seven nations are ruled by the Seven Archons. [Author's Notes] 1. A Genshin Impact secret identity story, with no romance. If you insist on a pairing, it's an all-Ying story. 2. Her brother will barely appear in the early chapters. This story does not involve the Genshin Impact main storyline. 3. I'll probably write about every character. They will all be written at C6 with maxed talents. 4. I may write about lots of obscure series? Theme: We will meet again someday.