Dakara Boku wa, H ga Dekinai

Dakara Boku wa, H ga Dekinai. follows Ryousuke Kaga, a high school boy who is treated as a walking pervert because of the way he stares at women and indulges in erotic fantasies. That reputation makes him a target for ridicule at school, but the truth is more complicated: his childhood friend Mina Okura knows that beneath the shameless act is a kind boy who believes girls should be protected and treated with chivalry. Ryousuke's life changes when he meets Lisara Restall, a Soul Reaper from a noble family who has come to the human world searching for a magically gifted person known only as the One. To keep herself moving, Lisara forms a provisional contract with Ryousuke and draws on his sexual desires as a source of magic. Thrown into that bizarre arrangement, Ryousuke is pulled into encounters with all kinds of strange people while learning that the world around him hides darker secrets than he ever expected. What begins as an embarrassing deal soon turns into a dangerous series of encounters, hidden powers, and uneasy alliances, while Mina Okura remains the one person who has always understood who he really is.