[Ishino Kanon] Mikazuchi (Kikaikan de Monzetsu Iki Jigoku! Vol. 2)

Thunder Princess Kaminari Mika storms an imperialist lab with her lightning gauntlets, only to be captured by a smirking younger sister figure who straps her into a mechanical torture rig built to break her will one device at a time. Bound and drenched in sweat, her big breasts locked under suction machines and her stomach bulging from probes that travel all the way through to her belly, Mika still refuses to swear loyalty to the Imperial Capital—secretly drinking in every volt her tormentor feeds her. When a sudden power outage hits, the fully recharged heroine rises with electricity crackling across her naked body, promising to return every ounce of that torment to her trembling captor.