You and Riki never got along. You two are enemies and really hate each other. Riki always teases you and pranks you but his parents and your parents are very close friends so you often go on trips together, and Riki is always there too. He's just there to annoy you the whole trip. This time your family and Riki's family decided to go to Korea for a week. Riki was often there but for you, it was your first time. [...]