Dakara Boku wa, H ga Dekinai.

On the surface, Ryousuke Kaga is the token perverted teenager, spending his days ogling women and indulging in erotic reveries. Because of this, Ryousuke is ostracized by his classmates. Only his childhood friend Mina Okina knows that behind his lecherous persona lies a compassionate boy who has sworn to be chivalrous to girls, believing they are treasures that must be protected. One fateful day, Ryousuke runs into Lisara Restall, a Soul Reaper hailing from a noble family, whose primary objective in the human realm is to locate a magically potent person known as the One. In order to fuel her movement with magic, she decides to form a provisional contract with Ryousuke: to use his sexual desires as a source of energy. Carrying out this peculiar arrangement with Lisara, Ryousuke encounters many disparate individuals but also learns of the intriguing yet dark secrets surrounding his world. Kaga Ryosuke is an ecchi high school boy. One day, he meets a girl standing alone in the rain. She is Lisarah Restor, an elite Death, who visited the human world in order to find “Singular Man”. Ryosuke makes a contract with Lisarah and she sucks energy required for her activity in the human world from Ryosuke. The source of the energy is his ecch… more Kaga Ryosuke is an ecchi high school boy. One day, he meets a girl standing alone in the rain.