This is as a fan-made mod of the Touhou Project series for the mobile game Unciv, taking place in a fantasy world called 'Gensokyo,' where basically from yōkai to Gods of Japanese mythology exists. There are even vampires in Gensokyo lol.
Credits for the illustrations that I used are in the Credits.md file
Touhou Project is a Japanese bullet-hell shoot 'em up video game created by Jun'ya "ZUN" Ōta, the developer is a member of Team Shanghai Alice. All credits to the wonderful independent developer, ZUN!