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...
I'm Nakata Seigi, 
a second-year economics major.
أنا ناكاتا سيغي، طالب سنة 
.ثانية في شعبة الاقتصاد
Yo soy Seigi Nakata,
de segundo de Economía.
Yo soy Seigi Nakata,
de segundo de Economía.
Je suis en deuxième année d’économie.
Seigi Nakata.
Io sono Nakata Seigi, al secondo anno di Economia.
Estou no 2º ano de
economia, Nakata Seigi.
Я Сэйги Наката, второкурсник экономики.