Second-year Kasaba University student Nakata Seigi rescues a foreigner being harassed by drunks. Wavy blond hair, blue eyes, and clear skin. The man who speaks unfaltering Japanese is Richard, a very competent jeweler with customers both domestic and international.
Thanked by Richard for being a "hero of justice," Seigi hires Richard to valuate a memento from his late grandmother, a pink sapphire ring. Through Richard, the mystery hidden in the ring is eventually revealed...
If I were a bad person trying 
to take your ring from you,
،إن كنتُ شخصًا طالحًا يحاول سرقة خاتمك
Wäre ich jetzt ein Bösewicht,
der dich um den Ring betrügen wollte,
Si fuera alguien malo
que quisiera quitarte el anillo,
Si fuera alguien malintencionado
que quisiera quitarte el anillo,
Si j’étais mal intentionné
Se fossi stato una cattiva persona
e avessi voluto prenderti l'anello,
Se eu fosse uma pessoa má e
tentasse tirar o anel de você,
Если бы я оказался мошенником,
который хочет забрать кольцо себе,