Katagiri Yuichi believes that friends are more important than money, but he also knows the hardships of not having enough funds. He works hard to save up in order to go on the high school trip, because he has promised his four best friends that they will all go together. However, after the classs money is all collected, it is stolen! Suspicion falls on two of Yuichis friends, Sawaragi Shiho and Shibe Makoto. Soon afterward, the five of them are kidnapped, and wake up in a strange room with a character from a short-lived anime. Apparently, one of them has entered them into a friendship game in order to take care of their massive debt. But who was it, and why did they have such a debt? Could they have stolen the money from class to pay for entry into the game? Katag