Kuzu no honkai (2017)

Hanabi Yasuraoka and Mugi Awaya look an ideal high school couple, but they both like someone else. Hanabi Yasuraoka has liked Narumi Kanai since she was a kid and Mugi Awaya likes his private tutor Akane Minagawa. As a couple, Hanabi Yasuraoka and Mugi Awayai have 3 conditions: They are not supposed to like each other, they will break up if either of them succeed in love with their secret crush and they will fulfill their physical desires.