If Mashiro and Nanami wasn't enough, Sorata has to deal with someone who has known him all his life. The jealous between these three rivals will bring Sorata to his knees.

One night, Mashiro's English school friend, Rita, turns up on the doorstep to flip everyone's world upside-down. Meanwhile, the gang finally meets the elusive occupant of Room 102: Akasaka Ryunosuke!