Love Hina is a Japanese manga series written and illustrated by Ken Akamatsu. It was serialized in Kodansha's Weekly Shōnen Magazine from October 1998 to October 2001, with the chapters collected into 14 tankōbon volumes by Kodansha. The series tells the story of Keitarō Urashima and his attempts to find the girl with whom he made a childhood promise to enter the University of Tokyo. The manga was licensed for an English-language release in North America and the United Kingdom by Tokyopop, in Australia by Madman Entertainment, and in Singapore by Chuang Yi. Two novelizations of Love Hina, written by two anime series screenwriters, were also released in Japan by Kodansha. Both novels were later released in North America and the United Kingdom by Tokyopop.

Aho-Girl is a Japanese four-panel slice-of-life comedy manga series written and illustrated by Hiroyuki. It was originally serialized in Weekly Shōnen Magazine on November 28, 2012. and then moved to Bessatsu Shonen Magazine where it was serialized between July 2015 and December 2017. Twelve compilation volumes by Kodansha have been released. An anime television series adaptation by Diomedéa aired between July and September 2017.