Onii-chan ga Zenra de Yobai o Shite Kita Kara Ukeiretechatta. Na, Nani o Itteru no ka Wakaranai to Omoukedo.

Ema and her big brother shared a dormitory at a prestigious boarding school. It was not your typical brother-sister relationship. They liked each other too much... TOO too much... and it got weird. Big brother loved his sister. He wouldn't let anyone else have her. Against the rules of school and society, love pierces through the veil. A hentai siblings-in-love game.