Guest and Setsuna were best friends.

But one day, Guest suddenly stopped going to school. Setsuna visits every day, bringing school assignments and snacks from the convenience store.

Guest has a complicated home life and doesn't want to be there, but school is impossible because of the bullying.

Then, out of the blue, Setsuna says, "Let's run away together."

This is the story of Guest and Setsuna.