Kou Ichinomiya has always lived according to the creed of his wealthy, successful family: never be in debt to anyone. But one day, under the Arakawa Bridge, his life is saved by a homeless girl named Nino. In order to pay her back, Kou promises to be her boyfriend; and thus begins his new life under the bridge.

Kento Hayashi
Riku

Mirei Kiritani
Nino

Shun Oguri
Village Chief

Takayuki Yamada
Hoshi

Yu Shirota
Sister

Nana Katase
Maria

Natsumi Abe
P-ko

Toru Tezuka
Shiro

Norihisa Hiranuma
Billy
Arakawa Under the Bridge65%
Rent-a-Girlfriend83%
Gals Can't Be Kind to Otaku!?79%
Girls Bravo77%
Air Gear72%
Special A63%
TenPuru60%
The World is Still Beautiful74%
Place to Place68%
Science Fell in Love, So I Tried to Prove It75%
Koikimo68%
A Couple of Cuckoos72%
Uzaki-chan Wants to Hang Out!83%
Seduced by My Best Friend64%
Jimihen!! Jimiko o Kae Chau Jun Isei Kouyuu64%
Golden Boy81%
My Love Story!!84%
The 100 Girlfriends Who Really, Really, Really, Really, REALLY Love You81%
The Genius Prince's Guide to Raising a Nation Out of Debt78%
Mother of the Goddess' Dormitory70%