The story centers on the daily life of college dorm roommates Yumi Irisu and Ruka Kujirai. Ruka, the older of the two, is constantly penniless despite her being active in a band. Irisu works part-time at a second-hand bookstore.
| Actor | Role |
|---|---|
 Shiori KuboYumi Irisu | Yumi Irisu |
 Yuna TairaRuka Kujirai | Ruka Kujirai |
 Keito TsunaTaguchi | Taguchi |
 Kouhei HiguchiItō | Itō |
| UUsagiNakazaki | Nakazaki |
| YYōhei GimaJaguar Mori | Jaguar Mori |
 Yuki TakaoDan | Dan |
 Dai HasegawaIwatetsu | Iwatetsu |
 Kohaku ShidaAkira Fukuzawa | Akira Fukuzawa |
 Masayuki InoArabiya | Arabiya |
 Tokuhisa YamashitaOld man | Old man |
 Shingo MizusawaSalary man | Salary man |
 Hisashi YoshizawaUruma | Uruma |
 Nene HiedaWaitress at a family restaurant | Waitress at a family restaurant |
 Hina TachibanaNabiko (voice) | Nabiko (voice) |
 Haruki IwataVocalist at an izakaya | Vocalist at an izakaya |