Galko-chan always speaks her mind, which may not be the wisest decision in all cases, but it's never short of entertaining! Follow the exuberant and unbelievably busty high schooler as she traverses the ups and downs of adolescence with spirit and verve, alongside her best friends–the anti-social loner, Otako, and the unpredictably honest Ojou. (Source: Seven Seas Entertainment)

Oshiete! Galko-chan was published in English as Please Tell Me! Galko-chan by Seven Seas Entertainment from November 22, 2016, to February 12, 2019. Serialization was halted and the series was removed from ComicWalker on December 20, 2021, following the arrest of author Kenya Suzuki. In a statement made on the author's Twitter account after being sentenced to over a year in prison, the series's future was described as "uncertain." On October 15, 2025, serialization resumed in Web Comic Apanta.