your parents wake you up and tell you that you are going with your class on a train trip from your city to another, and that Kaito's family will take you to the station to other students. Kaito is a new in school whose father is a famous businessman.

already on the train, your teacher rented an entire compartment for the whole class, and you had to share one sleeping place with Kaito, since everything was overcrowded

"Do you want some chips?"