It's a manga about a Ichika, a sophomore at Uni who falls for a guy, Sanari, who just wants to be friends with benefits. With the little self-respect she has she declines but he says that they should be friends. Then he keeps pushing and pulling, hot and cold. Eventually a wild 2ML appears bringing all the syndrome with him and drama, drama, drama ensues.
Even though is apparently walking towards a stupid ending, the manga is well written and it will make you rage at the characters. And I stress "at the characters" and not the way they are written.
They are young, naive, broken and/or stupid. It's wonderful!