When Nanami's high-school crush suddenly becomes her step-brother, she's faced with the unfortunate reality of having to live under the same roof as her now off-limits love-interest!

When Nanami's high-school crush suddenly becomes her step-brother, she's faced with the unfortunate reality of having to live under the same roof as her now off-limits love-interest!

Will his chilly attitude and arrogant ways be enough to turn her off, or is Nanami in for some long and sleepless nights...?