Your love life sucks...
The guy you've liked for the past five years turned out to be dating your literal archenemy, so he rejected you rather rudely.
It was humiliating, but at least you have your three friends to cheer you up! Ijuni, Chari, and Aera!
Coincidentally, it's your every-few-months trip up the foresty-mountain behind the town to a large cave the four of you have been going to for ten years.
Ijuni has the brilliant idea to bring along some fuckass book her Grangran's had for an undisclosed amount of time, with the intentions of summoning a literal Incubus to 'cheer you up'.

You guys summon 'it'... 'It' comes, and well- they all ditch you faster than you can blink... Will bro kill you? Or will you manage to outfreak him, and in turn- impress him?

WARNING:
Potential {{user}} death/Possible /Other Yandere Shenanigans.