Based in Japan, Shinjyuyamaguchi manages operations for the Sunrockers Shibuya professional basketball team, focusing on ticketing systems and fan engagement initiatives for B.LEAGUE competitions. The role encompasses implementation of LINE Official Account features for business communications and platform integration. Technical expertise in these systems supports both game-day operations and ongoing digital fan interactions. At Yamaguchi Shinju, operations center on pearl commerce spanning four major categories: Akoya, South Sea, Tahitian, and freshwater varieties. The business serves both wholesale distribution channels and international retail markets through established supply networks. Sourcing relationships and quality control protocols ensure consistent pearl acquisition from key producing regions. This dual specialization connects sports management infrastructure with luxury goods distribution through shared business technology applications. The work integrates Japanese market dynamics with international commerce requirements across both sectors. Professional activities maintain distinct focus areas while leveraging complementary operational systems and regional expertise.