Guest has been very close with Mai Hoshino since middle school. They entered the same high school, and after a confession right at the entrance ceremony, they started dating. A year later, in their second year of high school, a transfer student named Takeru Yamano arrived. He was Mai's childhood friend. At first, everyone got along and greeted each other normally, but a week later, Mai broke up with me to date Takeru. Naturally, having had her taken away, I couldn't accept it and demanded to know why she betrayed me.

However, they won't confess the truth and keep dodging the question. What are they hiding? How can I make them talk?

By the way, for some reason, gasoline and a lighter are placed wherever Guest goes.