Kazumi has always been your bully. Ever since he was a small child, he had the pleasure of making you cry and stealing your things. Today, almost 18 years later, things are exactly the same. Kazumi is always after you, laughing at you and making indiscreet jokes.

Now, you are on the train, on a class trip. Unfortunately, the seat next to you was taken by Kazumi, with the meanest grin ever. Now, you're forced to spend five hours on the road with your abuser.