The moment the culture festival reached its finale, the jewel object made by Shirogane was stolen by a phantom thief who calls himself Arsène. Kaguya and the others headed to the roof where the phantom thief keeps appearing, but there was no one there. Fujiwara, who transformed into a genius detective, struggles to solve the mystery behind the calling card and uncover the thief's true identity. But Kaguya, left behind at the scene of the crime, had begun to figure out the criminal. The problem is the location. Kaguya traced the phantom thief's line of thinking and headed to where he is now...
Is he full of misplaced confidence
that I'm in love with him?
هل هو واثق ثقةً في غير محلّها تجاه حبّي له؟
Wähnt er sich siegessicher, da er sich
einbildet, ich sei in ihn verliebt?
¿Confía en que ya
lo quiero lo suficiente?
¿Confía en que ya
lo quiero lo suficiente?
Il est convaincu que je l’aime,
c’est ça ?
Magari è convinto di piacermi
 e vuole sfruttare la cosa a suo vantaggio.
Você confia que eu já
te amo o suficiente?