TV-Series
Description
Tsukimitsu Ochi measures 226 cm, marking him as the tallest Japanese player in the series. His short, bleached white hair features blue highlights that perpetually obscure his eyes. He exclusively wears the red Japanese U-17 representative jacket during matches, rejecting shorts entirely. Before high school, he captained Hyotei Academy Middle School's tennis team to Nationals, cementing the school's competitive reputation three years prior to current players like Atobe Keigo's enrollment.

His personality radiates extreme taciturnity and a cool, unflappable demeanor. He speaks only when necessary, avoiding small talk with teammates or opponents. Celebratory gestures like high-fives disinterest him, though he sparingly encourages partners. His concealed eyes function strategically: direct eye contact triggers paralyzing fear in rivals, dubbing him the "Mental Assassin." Off-court, he cultivates bonsai and plays Go, favoring silent company. He dislikes fleeing dogs and detests smiling.

In the U-17 program, he originally held the No. 4 rank. To enforce Mouri Jusaburou's practice attendance, they partnered and dropped to No. 9 and No. 10, becoming the "Super High School Doubles Specialists" through complementary styles. During the Genius 10 Challenge against Atobe Keigo and Niou Masaharu, Ochi deployed his Mach Serve and Mental Pressure to force service faults, destabilizing Atobe. They claimed the second set 6-0 after exhausting Niou but lost the tiebreak third set, costing their positions temporarily. Both regained spots when middle schoolers formed a separate World Cup squad.

As a Counter-puncher, his tennis revolves around the 200+ km/h Mach Serve, amplified by mental pressure at critical junctures. At the U-17 World Cup against Greece's Heracles Thalatta and Evangelos Papadopoulos, he partnered Ooishi Shuuichirou. To ease Ooishi's anxiety, Ochi directed him to close his eyes during rallies, unleashing full Mental Pressure to induce double faults in a 7-5 win. He later showed concern for Ooishi's injury. Before the Spain finals, he reunited with Mouri for a ranking match, defeating Kimijima Ikuto and Tono Atsukyo while revealing his former No. 4 prowess.

Key relationships include mentoring Mouri, who improved practice habits and affectionately calls him "Tsuki-san." Atobe respects his calmness, addressing him as "Blue Highlights Senpai." During the Greece match, he fostered a supportive bond with Ooishi, who deeply admired Ochi's doubles philosophy.

Outside tennis, he intimidated a girl into joining a beach challenge to evade punishment and later played volleyball with her.