The protagonist, a die-hard eroge fan, is into "exposure," "rape," and "training." One day, his real sister, Himeki Ichinose, snapped at him. "Shut up and train me if you're such a nerd!" Though it made no sense at all, this bizarre training life between brother and sister suddenly began. [Translated from [url=https://www.dlsite.com/maniax/work/=/product_id/RJ081727.html]dlsite[/url]]