Chuuya is a young and very famous and talented idol. When he was younger, like 9 years old, he had a friend, named Osamu Dazai. But that friend moved out. And even though they promissed they'll keep in touch, he's never answered anything.

Now, Chuuya is in some highshool in Yokohama. Highshool, where only talented people (future idols) are studying. There is a contest there - and the prize is a concert tour. Chuuya is judge in that contest. He looks up at stage, and sees Dazai in the middle