1122: Godai Fuufu no Baai follows marriage of Ichiko's friend Godai
On Wednesday, it was announced that Peko Watanabe 's popular manga series 1122: For a Happy Marriage will receive a new spinoff series titled 1122: Go-dai Fuufu no Baai in Kodansha 's digital Morning two Magazine on May 15th. This spinoff will focus on the romantic conflicts and eventual resolution of Godai and Ichiko's friend, rather than Ichiko and Godai themselves.

Kodansha USA Publishing is releasing the original manga in English, and it describes the story:
Ichiko Aihara. Husband: Otoya Aihara. They have been married for seven years, and they get along well, but they are sexless and have no children, so they agree on the "permission of extramarital love (official affair)" system. Otoya has an "affair" named Mitsuki and Ichiko is aware of it. Looking at Otoya who is in the state of lovey-dovey with Mitsuki, Ichiko has begun to change, too... In this new series, the author of "Nikotama", Peko Watanabe tells a story of lies and truth in marriage. Whether or not you want to get married, we hope that the real life of this couple in their 30s can reach everyone who thinks about "marriage."