Jikan Teishi no Chikara o Te ni Ireta Ore wa Yatsu ra ni Fukushuu suru

A bullied student is driven to suicide, but an angel appears and grants him the power to stop time. He tests this power on the angel herself, engaging in sexual acts with her while time is frozen, before setting his sights on getting revenge against his bullies. The protagonist continues his revenge using his time-stop powers. After finishing with the angel, he targets Sakura Tsumugi in the classroom, tying her up and using a vibrator on her while time is stopped. He then forces her to service him. He targets Toudou Ayane, the student council president who also bullied him. He stops time during a school assembly and publicly humiliates her by having sex with her in front of the frozen student body, forcing her to confess her bullying. The protagonist completes his revenge against Toudou Ayane by publicly humiliating her in front of the student body while time is stopped, then unpausing time to reveal her state. He plans to continue using his powers for his own pleasure, but the angel who gave him the powers intervenes, revoking them and freezing him in place as punishment for misusing them.