This year's 48th issue of Shogakukan's Weekly Big Comic Spirits magazine is announcing on Monday that Inio Asano's Oyasumi Punpun manga series will end in the next issue on November 2. The 12th compiled volume announced in July that the series will end this winter with 13th volume.

The series follows Punpun, an ordinary young boy growing up in Japan whose age of innocence reached its end after his father was arrested for spousal abuse and putting his mother in the hospital. With his uncle looking after him, Punpun grows into adulthood facing a series of events that change him, for better or worse, forcing him to contemplate just what it means to be an adult.

The manga received a Jury Recommendation at the 13th Japan Media Arts Festival Awards in 2009.

Viz Media has published Asano's previous series Solanin and What a Wonderful World!, and Fantagraphics Books will publish Asano's Nijigahara Holograph horror manga. Asano mentioned in January that it is possible that his next work will focus on transgender issues, for which he will collaborate with fellow manga creator Shohei Manabe (Ushijima the Loan Shark, Smuggler).