This story centres around four students - the female transfer student who avoids getting close to others, Doushima Sachiko; the handsome yet mysterious Orihashi Soutarou; A girl who always seems somewhat on guard, Satou Momo; and the popular boy who just did a shocking reveal to the whole class, Mitsuya Yuuma. Each of them hold a secret they can't tell others. How will their high school life play out as they get involved with one another.