Ichinomiya Kou 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.
This anime is not what I expected, as I thought it would be great looking at the high ratings given. I recommend you not to watch it unless you are like me, just clearing the lists of to-watch-animes. Just to summarize, this anime is not suitable for anime fans above 12+.