Mystic Messenger x Male!reader

First your sister starts chatting with a random guy on this new messaging app, okay. Next, she (and you in tow) are led to an apartment because of this random guy, weird. Then, you break into the apartment and get dragged into some secret organization, wait what?

Mystic Messenger belongs to Cheritz, the picture belongs to whitebox, and the transcripts for the chatrooms are by Mystic Messenger Transcripts