Ryosuke Kaga’s life changed when he met a girl under the rain. Lisara Restall reveals that she’s a grim reaper and she needs energy to operate in the human world while looking for the singular man. She sucks out the life force from him, taking it from his lecherous spirit. He then helps Lisara and gets to meet more girls in the process. Dakara Boku wa, H ga Dekinai is a clothing damage festival of breasts and cute chicks.