Manga by author Asano Inio - Status completed

Witness the titular Punpun - who is depicted as a tiny, caricatured bird in an otherwise normal human setting - as he copes with his dysfunctional family and friends, his love interest, his oncoming adolescence and his hyperactive mind.

From Kotonoha:Koume Sato and Kosuke Isobe are two teenagers living in a sleepy seaside town. After getting used and dumped by her crush, the emotionally damaged Koume decides to start a sexual relationship with Kosuke, without any emotions involved. However, they both soon discover that sex with no strings attached do lead to unexpected complications, not just for themselves but also the people surrounding them.