Tying the Knot with an Amagami Sister (甘神さんちの縁結び, Amagami-san Chi no Enmusubi, lit. Matchmaking of the Amagami Household) is a Japanese manga series written and illustrated by Naito Marcey. It was originally published as a one-shot in Kodansha's Weekly Shōnen Magazine in December 2020, before beginning serialization in the same magazine in April 2021.