Eiichirou's father has a laid-back personality, but he's genuinely supportive of his son's ambitions. He was the first to back Eiichirou's plan to turn pro in tennis after hearing him out directly. What really sets him apart is his willingness to put his money where his mouth is—he committed to funding whatever training Eiichirou needed leading up to the All Japan tournament, impressed by his son's determination to make it on his own terms.
There's a catch, though. Eiichirou made a promise: if he doesn't win that tournament, he'll walk away from professional tennis for good. His father plans to hold him to it. It's the kind of deal that shows he's not just blindly indulgent—he wants Eiichirou to prove he's serious about this, not just chasing a dream.
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