The fiery, headstrong Akira and the cool, stubborn Tomohiro are a couple who had to overcome many obstacles to get married. After finishing a work assignment in Osaka, Tomohiro returned to Tokyo and told Akira that he was going to quit his corporate job and take over his mother's beauty salon in Osaka.

A Togainu no Chi anthology focusing on Akira.

One day, a boy takes part by chance in a pub game called "the angel game", and wins an angel. But he never thined he could be captivated by him... (Source: Kadokawa, translated)

A "The 100 Girlfriends Who Really, Really, Really, Really, Really Love You" spinoff that tells stories about the characters' families, drawn by the author himself.

A spin off for J no Subete, 15 years later.

When I woke up, I had time-leaped 15 years into the past. Standing before me was Yuki, my future wife, wearing a school uniform I don't recognize. In the original timeline, we wouldn't meet until we became adults and eventually got married, so we're still strangers for now. But I know that she distrusts people, has no friends, and spends her school days alone. I also know she'll deeply regret that time in the future. So this time, I'm going to rewrite her youth. Source: MU