[Akuochisukii Sensei] Cutie Pansy: Broadcasting The Ahegao Of Defeat (Kikaikan de Monzetsu Iki Jigoku! Vol. 1)

Pansy, a flower-themed heroine of justice, gets ambushed by a rival's mechanical tentacle rig right before her big club competition—bound, lubricated, and broken in on camera by buzzing machines while her captor taunts her about being a virgin. Her ahegao of defeat is broadcast to the entire school, and the leaked footage turns her from admired idol into a laughingstock as boys pass the video around and classmates sneer at the fallen 'heroine.' But the humiliation plants something dark: by the end, Pansy is begging to be loosened up even more, her corruption complete as she embraces being the huge bitch everyone now says she is.