Yumeno Kusaku, who died when the group invaded Yokohama at the age of 13, traveled back in time with a 13-year-old body to when Dazai Osamu was 14 years old. This was also the day when Mori Ogai first picked up Dazai Osamu, and it was the year before Mori Ogai became the leader.
Q: "I will definitely kill Mr. Si Dazai this time!"
[Private setting: Because of time travel, Jiu Zuo can control his own abilities. But I still don't use my powers very much]
Intention: I will definitely kill Mr. Si Dazai first!