The story begins with Izumi Hayato running to be student council president. But when a beautiful girl swings in promising the liberalization of love while flinging condoms into the audience, he ends up losing to her and becoming the vice president. At the student council meeting, the newly-elected president invites herself over to Izumi's house, where she promptly announces she is to become Izumi's wife thanks to an agreement—facilitated by alcohol—made between their parents when they were only 3. (Source: MAL Scanlations)

Sequel to the first series.

Special episodes released on AbemaTV.

Since entering high school, Kyou Nukui has not attended a single class. Instead, he spends his days locked in his bedroom composing music and posting it on the internet accompanied by his only friend's drawings, an artist with the pseudonym "Kiriyume." One day, Kyou hesitantly uploads his newest composition, and first departure from his typical style, TR03. Additionally, he does not upload under his usual handle "HibikiP," but simply under the name "me," and without a drawing from his mysterious friend. Shortly after, Kyou receives a very polite email, not only praising his music but also somehow discerning that he is, in fact, the composer behind TR03. The e-mail also asks for a meetup in a nearby park, to which he cautiously decides to go. To his surprise, however, he finds three elementary school girls at the meeting place! Suddenly, Jun Gotou, Nozomi Momijidani, and Sora Kaneshiro ask for his help to hold a concert in their home, an old church now used as an orphanage. And though Kyou is reluctant at first, after seeing their musical abilities, he eventually decides to accept their proposal. Based on the light novel of the same name by the award-winning Sagu Aoyama, Tenshi no 3P! follows Kyou as these three angels change his life. [Written by MAL Rewrite]