Ken Akamatsu is a Japanese manga artist and politician who has served since 2022 as a member of the House of Councillors. He made his professional manga debut in 1993, and is best known as the author of Love Hina (1998–2001) and Negima! Magister Negi Magi (2003–2012), both serialized in Weekly Shōnen Magazine; a sequel to Negima!, UQ Holder!, was serialized from 2013 to 2022. In 2011, Akamatsu founded J-Comi, a free digital distributor of out-of-print manga.

UQ Holder! is a Japanese manga series written and illustrated by Ken Akamatsu. It was serialized in Kodansha's Weekly Shōnen Magazine from 2013 to 2016 and later transferred to Bessatsu Shōnen Magazine, where it was serialized from 2016 to 2022. Set several generations later in the world of his previous work Negima! Magister Negi Magi, it follows the adventures of Tōta Konoe, a young boy who is transformed into a vampire and joins a secret society composed of immortal beings.