This is all a conspiracy to trigger shounen ecchi comedy manga readers with gateway drugs into the world of yuri, yaoi, and shoujo, all at once.
Consider this classic setup: a bad boy with a heart of gold (Hayase), a sweet "white prince" (Kandono), and a later dark horse addition (Minato - who of course becomes a fan favorite) all competing for the attentions of an extremely cute yet relatable heroine (Moegawa). Definitely the Love Fairy's favorite manga.