Aka no Sekai

A collection of short stories includes one titled "Aka no Sekai," which takes place at a boys' summer camp in the countryside. Regulus, who is not eager to be there, shares a cabin with Milan, a more enthusiastic and upbeat camper. Shortly after their arrival, some of the other boys at the camp start behaving oddly, expressing a desire to see the color red. The story follows Regulus and Milan as they attempt to uncover the cause of the strange occurrences before things escalate.