Kōhei Amasaki is a Japanese voice actor. He is affiliated with I'm Enterprise. He won the Best New Actor Award and Singing Award at the 13th Seiyu Awards. He has 2 older brothers and no sisters.

After School Dice Club is a Japanese manga series written and illustrated by Hirō Nakamichi. It focuses on a group of teenage girls and their efforts to set up a board game café. It was serialized in Shogakukan's shōnen manga magazine Monthly Shōnen Sunday from March 2013 to June 2021, with its chapters collected in nineteen tankōbon volumes. An anime television series adaptation by Liden Films aired from October to December 2019.