Genshin Impact: The Adapted One Descends Upon Teyvat

(Genshin Impact + Ultraman + not overpowered + deciding whether to include a female lead + growth arc + angst + original characters) Protagonist Su Hui, once hailed as a harbinger of disaster, arrives on Teyvat through a black hole created during his battle with Dark Zagi. He sets out on a journey with Ying, but Dark Zagi's scheme is drawing ever closer. Faced with the threat of this conspiracy, can Su Hui protect Teyvat? (Please note: The author is familiar with Genshin Impact's story. However, incorporating Nexus into the game's plot may require changing some parts of the story, so I hope you'll understand. Also, if you come across any names you haven't seen in Genshin Impact or the Nexus story, please assume they were created by the author.)