A teen idol, Yui Saikawa, enlists Kimizuka and Natsunagi--who has taken up the mantle of legendary detective--to guard a priceless sapphire. In preparing for this, the two realize that more than just a precious jewel is at risk.
Natsunagi... whomever
that heart may belong to,
،ناتسوناغي... أيّا كان الشخص الذي ينتمي إليه القلب
Egal, wem dein Herz gehören sollte,
Natsunagi, sea de quien sea ese corazón,
Peu importe l’identité
de ton donneur,
Natsunagi, independentemente de quem
tenha sido a dona do seu coração,