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...
And so time that was frozen half a century 
ago in Tokyo began moving with a groan.
وهكذا، الوقت الّذي تجمّد قبل نصف 
.قرن في طوكيو بدأ يتحرّك مجدّدًا بأنين
Die Zeit, welche ein halbes Jahrhundert
zuvor in Tōkyō stehengeblieben war,
El tiempo se detuvo medio siglo en Tokio
y empezó a moverse con un quejido.
El tiempo se detuvo medio siglo en Tokio
y empezó a moverse con un quejido.
Le temps figé à Tokyo
un demi-siècle plus tôt
Quel frammento di tempo che si era congelato 
mezzo secolo fa a Tokyo riprese a scorrere con un lamento?
O tempo congelado por meio século em
Tóquio começa a se mover com um ruído.
Застывшее полвека назад время в Токио
со скрипом снова пришло в движение.