https://m.webnovel.com/book/getter-imapact-the-devil-god-machine-of-teyvat_20634259705207505

So I found this fanfic when I search getter robo fanfic. This Fanfic is a crossover between Getter robo x Genshin impact. Go read it if your interested, only 6 chapters the author written

This is the what cover look.