Sen Tatenaori is a fictional character from Mahjong Hishouden: Naki no Ryuu, a mahjong-themed series centered on intense competitive play and dramatic rivalries. He is presented as a notable participant in the story’s mahjong battles, contributing to the series’ atmosphere of tension, strategy, and psychological confrontation. As a character, Sen helps drive the competitive narrative forward and represents the skill, focus, and determination needed to survive in high-stakes mahjong matches.