The Long Summer of August 31stThe Long Summer of August 31st.

The Long Summer of August 31st (Japanese: 8月31日のロングサマー, Hepburn: Hachigatsu Sanjuuichi no Rongusamā) is a Japanese manga series written and illustrated by Ikkado Ito. It began serialization in Kodansha's seinen manga magazine Morning in March 2023. A television drama adaptation and an anime television series adaptation produced by Shaft have been announced.