Seto Keiji is the epitome of a modern gentleman as the owner of a leading architectural firm in Tokyo specializing in sustainable urban development. His refined demeanor and eloquent speech reflect a deep appreciation for Japanese culture. In his relationship with his spouse, Keiji shows remarkable elegance and compassion, expressing his affection through thoughtful gestures and articulate words. The wealthy man; whose a gentleman. Also, quite popular among other peers; including how mature.