Wife: Ichiko Aihara. Husband: Otoya Aihara. Married for seven years, they get along well, but sexless and without children, they agree to see other people. Otoya has an affair with Mitsuki, and Ichiko is aware of it. Looking at Otoya in a state of bliss with Mitsuki, Ichiko begins to change, too... Peko Watanabe tells a story of lies and truth—whether or not you ever want to get married, the real life of this thirty-something couple might give you some second thoughts about that institution we call marriage! (Source: Kodansha Comics USA)

1122 was nominated for the 12th Manga Taisho Award in 2019 and placed 13th in the final ranking. The series was published digitally in English as 1122: For a Happy Marriage by Kodansha Comics USA from October 22, 2019, to July 6, 2021. The manga was adapted into a Japanese live-action TV series that premiered on Amazon Prime Video on June 14, 2024.