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.
♬ Knocking on a brand-new door ♬
Wir klopfen an einer neuen Tür.
 Tocando una puerta nueva 
Ouvrons de nouvelles portes
Batendo em uma nova porta