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...
The story of a man who offered up
his heart to prove his love.
.قصّة رجل منح قلبه ليثبت حبّه
Die Geschichte eines Mannes, der als Beweis
seiner Liebe sein Herz darbietet …
Un hombre que entregó su corazón
como prueba de su amor.
Un hombre que entregó su corazón
como prueba de su amor.
C’est l’histoire d’un homme
qui offre son cœur à celle qu’il aime ?
"La storia di un uomo che,
 come prova d'amore, dona il proprio cuore", eh?
Um homem que deu seu coração
como prova de seu amor.
История о том, как юноша подарил
сердце в знак любви к принцессе.