The mixed twins – Kobayashi Mitsuru (male) and Kobayashi Megumu (female), who haven’t seriously fallen in love for someone and other who doesn’t know anything more than 2D world. A situation arises were Megumu and Mitsuru are forced to cross dress, and go to school? Mitsuru’s encouter with a cute girl in Megumu’s school and Megumu’s meeting with the guy she met earlier is actually in her brother’s school?? Will they find themselves and their first love??