While she looks around, she encounters some odd creatures with feline features which are called 'Mogekos'. Unfortunately, she awakens to an unfamiliar train station, and feels as if something is watching her.
Boarding the train she ends up falling asleep on the way home. Today is the day that her beloved big brother, Shinya, returns home. Yonaka Kurai is an ordinary girl in her second year of high school.
