Synopsis

Kyou Nukui is a high school shut-in who never attends class. Instead, he stays in his room making music and uploading it online with artwork from his only friend, an artist who goes by "Kiriyume." One day he decides to try something different—he posts a new track called TR03 under a random name ("me") rather than his usual producer handle "HibikiP," and he doesn't ask Kiriyume for accompanying art this time. Someone sends him an email almost immediately. Whoever it is loves the song and somehow figured out he's the real composer. They want to meet up at a local park. Kyou's nervous but agrees. He shows up expecting to meet one person. Instead, he finds three elementary school girls waiting for him. Jun Gotou, Nozomi Momijidani, and Sora Kaneshiro are direct about what they want—they need his help putting on a concert at their place, an old church that's now an orphanage. Kyou's hesitant until he hears them play. They're genuinely talented, so he agrees to help. Based on Sagu Aoyama's light novel series, Tenshi no 3P! is about how these three girls turn Kyou's isolated life around.

Content compiled by AnimeList.moe from publicly available sources.