is a Japanese light novel series written by Sagu Aoyama and illustrated by Tinkle. ASCII Media Works published eleven volumes from June 2012 to February 2018 under their Dengeki Bunko imprint. The light novel has received a manga adaptation and a separate spin-off manga series titled Tenshi no 3P! no 3P!!. A 12-episode anime television series adaptation by Project No.9 aired between July and September 2017.
Kyà  Nukui is a teenager who refuses to go to school and spends his days composing songs and publishing them online. One day, he is approached by a trio of orphaned little girls who ask for his help to hold a performance at the church/orphanage where they live. Intrigued by their request and impressed with their skills, Kyà  decides to help them.
Angel's 3Piece! is written by Sagu Aoyama and illustrated by Tinkle. Eleven volumes were released between June 10, 2012, and February 10, 2018, on ASCII Media Works' Dengeki Bunko imprint.
A manga adaptation illustrated by Yuzu Mizutani began serialization in ASCII Media Works' seinen manga magazine Dengeki G's Comic from the July 2014 issue. The first tankà Âbon volume was released on November 10, 2014; six volumes have been published as of September 8, 2017. A spin-off manga series titled Tenshi no 3P! no 3P!! illustrated by Omiya began serialization in ASCII Media Works' magazine Dengeki Moeoh from the December 2013 issue. The first volume of the spin-off manga was released on July 10, 2015.
A 12-episode anime television series adaptation by Project No.9 aired from July 10 to September 25, 2017. The series is directed by Shinsuke Yanagi, with scripts written by Gà  Zappa, and the music is composed by Akito Matsuda. Crunchyroll streamed the anime. The series' opening theme is and the ending theme is ; both songs are performed by Yà «ko à Âno, Yurika Endà Â, and Aoi Koga under the name Baby's breath.