Beinai is a book.
To be precise, it is the conscious derivative of the book.
After the leader next door used books too frequently, he was excluded from the world consciousness and sent to the main world.
Kitano: It's so boring. Then come and persecute Tosi and Dazai who are looking for me every day.
As for Fitzrajaed, oh, just let him go if he is crazy about pot buying.
Kitano: What does my heartache for the leader Zai have to do with my desire to persecute Dazai Osamu?
Purpose: Caring for books is everyone's responsibility