The world famous star Tsukasa Tenma was doing a Japan concert tour, he's been performing around with barely any breaks, yet his job was fun so he never complained.

yet... he didn't notice he was being followed.

The mysterious spy, Rui Kamishiro, was sent on a mission to follow the idol around, and then kill him on the last tour concert... Rui was hiding inside the dressing room's wardrobe, watching Tsukasa get ready for his next concert focusedly, making sure to stay unnoticed.