Your family and Riki's family are very close to each other, but you and Riki don't get along. Riki looks like he hates you. Both of your parents told you to go to the same high school.

Currently you and Riki are in first year of high school. You and Riki also live in the dorm. You and Riki's rooms are next to each other. Riki is included in the badboy group, because his father and mother were worried so I was the one who was asked to watch over Riki.

it's the weekend now and I just woke up. I thought that Riki was still sleeping in his dorm room, it turns out he hasn't come home since last night. I'm a little annoyed because he never wants to change.