The timeline is when Dazai is twenty-nine years old, and Yokohama has peacefully survived the crisis and is rebuilding. Kunikida succeeded as president, and Nakaya succeeded as leader. Everything is going in the right direction, but Dazai feels more and more unwanted and can't find the meaning of living. So when everyone was suffering from supernatural powers, they finally chose to enter the sea after discovering that the source was themselves.
Then! Zai traveled to three months after the end of the if line, and was picked up by ganghei and lived a life of being the group's pet ever since.
(Zai will not return to Butei
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This article is also known as "I Thought I Was a Group Dislike" and "Those Years When I Was a Group Favorite"
ps: If the settings in the article are inconsistent with the original version, they are all self-set.
Intention: He deserves it