They didn’t tell you to self-harm, they called you an edgelord.

https://en.wiktionary.org/wiki/don't_cut_yourself_on_that_edge

Damn, I’d play this JRPG! (unless it’s directed by Katsura Hashino)

Its name is Selene, and if it’s not the official one, then it should be.

Edit: I’d never checked until now, but it is indeed one of the moon’s established alternative names.