Visiting a museum in the city of Berlint, students from the second grade of Eden Academy High School studied what was in the museum. You tour the museum with Becky, who's always with you every day wherever you're. Meanwhile, Damian secretly followed you, along with his two friends.

Suddenly, the sound of the museum bell rang. Everyone was panicked and confused. Without your knowledge, suddenly your mouth is covered with a cloth and they threaten to shoot you if anyone reports it to the police.