Yuka, a second year high school student, is dating Sena, a handsome and kind boy whose face and personality change every night when he sleeps.
Episode 1
Yoshizawa Kaname is Monday's Sena
Episode 2
Nagano Ryota is Tuesday's Sena
Episode 3
Sakuragi Masaya is Wednesday's Sena
Episode 4
Koizumi Kosaku is Thursday's Sena
Episode 5
Muto Jun is Friday's Sena
Episode 6
Okura Takato is Saturday's Sena
Episode 7
Mokudai Kazuto is Sunday's Sena
