1122: For a Happy Marriage is a Japanese manga series written and illustrated by Peko Watanabe. It was serialized in Kodansha's seinen manga magazine Monthly Morning Two from September 2016 to May 2020. A seven-episode live-action television drama adaptation premiered in June 2024. A spin-off manga series, titled 1122 Godai F?fu no Baai, is set to start on the Morning Two website on May 15, 2025.