Lilia is a user on niu.moe. You can follow them or interact with them if you have an account anywhere in the fediverse. If you don't, you can sign up here.
Lilia @Pasty

Sidekick: Protagonist, you fool. Have you never noticed that my musical theme is in the same key as the villain's?
Villain: Ah, yes, finally.. Time to listen to that sick mashup..