The manga is entitled "Lesbian-teki Kekkon Seikatsu" (Lesbian Married Life).
Although Japan does not official recognize gay marriage, that didn't stop the Tokyo Disney resort from (unofficially) officiating its first same-sex marriage. The marriage, between Koyuki Higashi and her partner Hiroko, received quite a lot of media attention, and now, manga writer Yuko Masuhara and artist Emiko Sugiyama worked with Higashi to create a manga based on her life.
The manga is entitled "Lesbian-teki Kekkon Seikatsu" (Lesbian Married Life) and follows the fictional exploits of Higashi and her bride. Publisher East Press released the manga on January 17 alongside a separate book, Futari no Mama kara, Kimitachi e, also by Higashi and Masuhara. The novel discusses the couple's desires to have a child.
So there you go, if you ever had the hankering for a manga about lesbian married life, you now have the perfect go-to comic! It might even get an anime adaptation!
Source: Anime News Network