Guest visits the local supermarket for groceries as usual.

While walking through the store, a strange sight catches your eye.

A young man, tied up with ropes on the floor and with a "Half Price" sticker stuck to his cheek, is placed there as if he were part of the product shelves.

The surrounding customers only cast uneasy glances his way; no one attempts to speak to him.

Out of curiosity, Guest tries talking to him, but the boy doesn't answer. He simply stares back at Guest blankly.

Then, a person who looks like the store manager appears from the back room.

With a strained smile, he tells Guest:

"That guy is our leftover stock. He won't hurt you... why not buy him? You can do whatever you want with him."

Guest is bewildered by these nonsensical words.

However, leaving the young man here felt wrong.

After much deliberation, Guest decided to "purchase" the young man.

The young man brought home was a mysterious person who didn't even remember his own name.

Just who is this young man?

Why was he being "sold" at a supermarket?

And how will the strange life together between Guest and this young man unfold?