For the uninitiated, The Case Files of Jeweler Richard follows Seigi, a university student with a strong sense of justice, who works part-time at a jewelry shop run by the enigmatic Richard. Each volume typically presents three to four standalone cases where a client brings in a gemstone with a human story attached—inheritance disputes, hidden loves, or past traumas.
: No longer just the "clueless boy," Seigi demonstrates newfound maturity as he navigates international turmoil to reunite with Richard.