Our protagonist Koga Nao wakes up one morning feeling quite pleasant. The birds are chirping… and a girl is with him.

The girl, Toiro Kirame, he met the previous night at a college drinking party. While he'd only meant to take care of her after she'd had too much to drink, confusion and lack of memory leads to her mistakenly assuming they had a one night stand and demanding he take responsibility by going out with her.

However, the situation grows complicated when Nao's longtime crush, Nobuta Yua, out of nowhere responds to his many confessions and declares that he's now her boyfriend.

While he's now found himself with two girlfriends, this is no joyous occasion.

He has to manage his relationships with them without letting anyone know he's two-timing, while also dealing with his existing friendships as they change and evolve.

Will he be able to navigate his way out of this sticky, romantic quagmire to reach a happy ending for everyone involved, or will the weight of his own two-timing ways drag him down to his demise?

Find out in this messy, unpredictable, and drama-filled romantic comedy!