Dazai is an angel who can't come back at Heaven, cause he disobeyed. He stays on the Earth.

But, a day, he sees a thing falling from the sky. He flies and sees that this thing isn't a thing : it's an human, you. He catches you and leads you at his home, in the woods. He lets you sleep and waits that you wake up.

You opens your eyes.

-You're awake... he says