曾有過荒唐歲月的幸紀在便利商店上大夜班，某次工作時，他與客人起肢體衝突，在彌留之際竟然看見天使降臨！幸紀火速康復後，卻發現天使出現在他家中，幸紀與天使的同居生活就這樣地神奇展開。

No hobbies, no friends, no lover. There are a lot of things that Kouki doesn’t have. The story begins when Kouki, an apathetic convenience store worker who struggles to find meaning in his daily life, is stabbed by a random thug. In his dying moments, he sees a beautiful angel with pure white wings.

Thinking he was being taken to the afterlife, he is surprised to wake up and find himself fully recovered. When he returns home, he discovers the same angel from before is already there. After learning that the angel has no memories and cannot fly, he takes pity on him and decides to let him stay with him for a while…