I Kissed My Girlfriend's Little Sister?! (Japanese: カノジョの妹とキスをした。, Hepburn: Kanojo no Imōto to Kiss o Shita), or Imo Kiss (いもキス), is a Japanese light novel series written by Riku Misora and illustrated by Saba Mizore. SB Creative published the series in four volumes from April 2020 to September 2022. A manga adaptation, illustrated by Kakito Kato, began serialization on the Manga UP! website in May 2022. As of October 2023, the manga's individual chapters have been collected into two volumes. Source: Wikipedia (en)