On his way home from picking up a matching set of rings for himself and his lover, Fuji Takahiro is hit by a car. The following amnesia degrades his live-in lover Kotou Tarou to a mere flatmate, and a series...

Tsuna comes home one day, only to be greeted by a little baby mafioso who apparently is his new home tutor. His job is to guide Tsuna into his role as the 10th Boss of the Vongola mafia family. With the help...

Half a year ago, Yanai Makoto, a normal office employee, became his friend’s guarantor for a large loan, but in the end the friend fled and left him with enormous debt of 30 million yen. Yanai became a cal...

The story is about a boy named, Shichiri Tasuke, a junior high school student who lives alone. His parents are constantly traveling the world. One day his father, Tarousuke, sends Tasuke a strange ring he fo...

The heroine is given a ring called "The Maidens Tears" that according to legend brings unhappiness by whomever possess it.

In the Shukumei no Yubiwa series (宿命の指輪シリーズ), also called the "With These Rings" series: 1) Tenshi to Koi to Okumanchouja (天使と恋と億万長者; The Secret Millionaire): FROM SINGLE...