The couple in question is Ichiko Aihara and Otoya Aihara. They have been together for seven years and enjoy each other's company despite not having children or engaging in sexual activity. Although they agreed to see other people, Otoya had an affair with Mitsuki, which Ichiko was aware of. Seeing Otoya happy with Mitsuki caused Ichiko to experience a change as well. Peko Watanabe's story highlights the complexities and challenges that come with marriage, making one question whether or not they truly want to be part of this institution called marriage.
1122 was published digitally in English as 1122: For a Happy Marriage by Kodansha Comics USA from October 22, 2019 to July 6, 2021.