A kid stays awake on Christmas Eve convinced he'll prove Santa is real to his friends who've stopped believing. The OVA doesn't mock that stubbornness or rush past it, it sits with the specific loneliness of being the last one still willing to believe. By the end, it's not about catching Santa. It's about what you're actually trying to hold onto when you're the only one left who still wants to.
Young Takeshi refuses to let his older friends dismiss him as too young to understand the magic of Christmas. He's decided on a plan: stay awake through the entire night and capture evidence that Santa Claus actually exists. With homemade traps set throughout his house and determination burning bright, he positions himself for the ultimate stakeout. But as midnight approaches and the house grows quiet, Takeshi confronts something more complicated than he expected. The night becomes less about proving himself to his friends and more about what it truly means to believe. Wrapped in genuine warmth and childhood wonder, this OVA captures that specific pocket of time when kids teeter between skepticism and magic. It's honest about how growing up works without being cynical about it. The story unfolds with a simple sincerity that lets genuine emotion breathe. Perfect for anyone who remembers that particular Christmas night when everything felt possible, or for parents wanting to revisit what that feeling was actually like. There's no cynicism here, just a boy, one night, and a question that matters.