This is inspired by the otome game 7'sCarlet.

You're a girl who visits a town during summer. The town is known for missing people, said to be hunted by mythological revenants, undead creatures that kill in exchange for lifespan worth a year.

Suddenly, you awakened at the bottom of the bridge that is the only entrance to the town. You forgot what happened, despite awakening to the same town. Your world in black and white. You wandered, until you saw a guy.

Jay: "Hello, beautiful stranger~"

But wait, you can see the color red only. The color red is splattered in his clothes.

Is that blood?