Parallel worlds seem like a good subject to exploit because anything can happen.
At the same time that Bailan Jiesuo committed suicide, Irie Shoichi fainted with the huge impact (from the senses and psychology), and then... Conducted a wonderful molecular fusion with Irie Shoichi in the parallel world.
It's like the memories of two souls spread out into one, and from time to time two thoughts appear. But either one is a cowardly and incompetent choice.
Bai Lanjisuo of this world has not yet appeared, and Irie Shoichi works hard to reject this white-haired man because of another dream-like memory.
But what is supposed to happen will happen.
How to deal with this situation, and where should the other Irie Shoichi go?
As for the character setting, Irie Shoichi is a writer/screenwriter who is neurotic and almost pathological, while Bai Lan is a star who plays a big role in his smiling eyes. Other appearances will depend on the situation.