On the night of Yui Saikawa’s big stadium show, Kimizuka and Natsunagi struggle to protect her from a hidden assailant. But the further the two dig into the plot against Saikawa, the clearer it becomes that the teen idol has secrets of her own.
♬ A mystery story,
memory of a bittersweet love ♬
Eine mysteriöse Story.
 Una historia misteriosa,
recuerdo de un amor agridulce 
Une histoire mystérieuse,
Uma história misteriosa
Memória de um amor agridoce