Naoki Takeda, a brown-haired, brown-eyed Japanese student at Root Academy, channels his competitive spirit through the Puzzle Club, where he relentlessly challenges clubmate Kaito Daimon to Sudoku duels. Born on May 2nd, his academic pursuits and rivalry with Kaito define his known engagements, with no additional details documented about his personal history, evolution, or roles in extended media narratives.