Iinari Cosplayer Kanami-chan no Shuuchi Satsuei-kai

The girl who showed up at the event venue was rumored to be the kind of cosplayer who’d do any lewd pose—a girl who’d say yes to anything.

Kanami, a girl with a passion for cosplay, had always enjoyed her hobby in her own way. But one ordinary afternoon after school, she fell into a trap set by a man and was raped.
From that day on, she had no choice but to become her "master’s" obedient plaything. And with that, her lewd misfortunes began…

[Translated from dlsite]