Iinari Cosplayer Kanami-chan no Shuuchi Satsueikai

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]