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...
My mother resents my grandmother 
more than anyone.
.تكره أمّي جدّتي أكثر من الجميع
Meine Mutter trägt das meiner Großmutter
mehr nach als jeder andere.
Mi madre la odia más que nadie.
Mi madre la odia más que nadie.
Ma mère est celle qui en veut le plus
à ma grand-mère.
Mia madre è quella che prova più rancore 
di chiunque altro nei confronti di mia nonna.
Minha mãe é quem tem o maior
ressentimento pela minha avó.
Мама ужасно обижена
на бабушку ещё с детства.