A guy who can never be indebted to anyone due to some insane family belief finds himself indebted to a girl named Nino, for saving his life. He later finds that she lives under the Arakawa Bridge. Now, since he can't be indebted, he tries to find a way to repay his debt, and she replies that he must love her, and now must live under the bridge.
He later finds that the place is inhabited by a bunch of weirdos.
I have only read 23 chapters of what seems to be around more than 60 published chapters of this currently on-going series, and so far find it amusing. The chapters are short. It builds its punchline making you expect something out of it, then flips it around, and drop you a completely different thing. Sometimes, due to the insanity, you would expect something over the top, and then it will hand you a punchline that is completely ordinary.
Logic is sometimes useless in this manga. Then again, what can you expect with a gag manga? Logic got no place here! Often I find slapping my forehead over some gags and chuckling at how a chapter would end, yet I would find myself reading the next chapter.
The manga is making me want to try and watch the anime.
Resources/Links:
MyAnimeList
MangaReader