My First Template Character is Raiden Ei?

(Note: English in not my language, so I apologize if my grammar is poor) (No. This is not a Chinese fanfiction or anything of that sort. This is purely my original story, but I'm translating it into English to practice my grammar at the same time) After being murdered by a stranger, Lux finds himself reincarnated into another world. Like most reincarnators, Lux possesses his own "golden finger" or cheat abilities to help him survive in this new realm. Unexpectedly, he possesses two powerful cheats: the "Divine Ice Emperor" and the "Mystic Eyes of Death Perception." With these abilities, Lux has no doubt he will become one of the most powerful existences in this world, given enough time. However, recently Lux discovered that he apparently has yet another cheat in the form of a System?... Unfortunately, this System remains sealed. It will only unlock after he completes certain requirements. One of those requirements is to become an assassin. Reluctantly, he begins living the life of an "Assassin." Three years pass, and having fulfilled the System's requirements, Lux becomes known by the title "Frost Assassin." However... for some reason, Lux feels this System is different from what he expected? [Ding! Requirements fulfilled, System Character Template unlocked!] [Ding! Character Template randomized!] [Ding! Host successfully obtained Character Template 'Raiden Ei / Shogun' from Genshin Impact World!] [Earn achievement points with Host's Character Template, and you can shop for anything in the Mall with those points!] Seeing his appearance change into a beautiful adult woman with purple hair wearing an elegant kimono reflected in the mirror, the assassin's expression freezes. "Give it back... Return my male form to normal..." A charming yet cold voice emerges from the woman's lips... (Note: Don't worry, he can switch back to his original appearance. He transforms into a girl because of the Template, but he can deactivate it anytime)