This article is absolutely sweet, and the emotional line is definitely sweet, guaranteed by the author's reputation!
The power of the "book" began to fade away, and there was an urgent need to integrate with other worlds to prevent collapse. As a guardian, Dazai Osamu took his little slug to break the timeline and set time back. Yokohama, the original center of the world, also began to splice with other worlds.
Osamu Dazai was very interested in the Shinigami elementary school student who had no special powers but died wherever he went, and wanted to have an autopsy to take a look. In response to this, Nakahara Chuuya, who was his boyfriend, beat Dazai Osamu violently on the spot, killing his idea in the cradle.
Regarding the two souls living in the same body, Koizumi and Su Nuo, Osamu Dazai...
Nakahara Chuuya: No, you don't want to (smiling and shaking his fist)
Osamu Dazai: ... Okay, my boyfriend has the final say. (You are just cowardly)
Intention: The most intimate bond in the world