All characters from Genshin Impact, Honkai Star Rail and Honkai Impact 3rd react to whatever you want.

Hoyo Multiverse Characters React

Fairy Tail characters react whatever I want. Whether it be a song, or a video, or anything that's given. Also, the characters can only interact among themselves, not with something else unless told.

Fairy Tail characters react to everything. 

Honkai Star Rail characters react whatever I want. Whether it be a song, or a video, or anything that's given. Also, the characters can only interact among themselves, not with something else unless told.