Created by Hato Moa, Hatoful Boyfriend follows the love life of a young high school girl surrounded by handsome, single birds.Through the course of the school year, she falls in love with somebirdie and explores the mystery and charm of their particular story. Pigeo Nation Institute, a regal school in Japan that teaches gifted birds from around the world.
See Triang Relations for all the ways these three people can mess up their love lives. Sometimes a Love Triangle can come to involve a fourth person, while still ultimately being called a "triangle." But move complications that insist on widening it can be explored further in a Love Dodecahedron. I didn't have any particular reason for it, other than to surprise readers.
I mainly did it because I don't think there has ever been a manga where two rivals kissed.
Also, by having this encounter, it was easier to set up the love triangle: Sakura, who had intended to be the first one to kiss Sasuke, has it stolen by her rival Naruto, Sasuke and Naruto are rivals, so there's and added tension there.
While the art, music and backgrounds are mostly Creative Commons assets, it has a lot of charm and is like a love letter to dating sims with its own comedic tone and sudden dramatic twists.
For those who enjoy otome games (VNs and dating sims targeted towards girls), Hatoful Boyfriend is well worth trying.