In which Dazai and (Y/n)'s future child come back to the past to meet their past self and the past agency seeking for help.

why would their child ask for the past Dazai, (Y/n), and the agency's help?

did something happened to their future self? And what if (Y/n) hasn't joined the agency yet?

What would (Y/n)'s ability be? Or does she have an ability?

This story is just made of my mind, I don't own any of the characters except for the oc's, I also may not followed the plot so I hope you like it!