Given

Ritsuka Uenoyama has lost his spark. School feels stale, basketball offers no thrill, and even the guitar—once his greatest passion—has faded into mere routine. Then one day, hoping to nap in his usual hidden spot, he finds it occupied: a stranger sits there, quietly cradling a guitar with a snapped string. The boy, Mafuyu Sato, is odd in subtle ways Uenoyama can't quite place, and at first Uenoyama has no idea what to make of him. But on a whim, he asks Mafuyu to sing—and the answer changes everything. The moment Mafuyu's voice rises, a current of sound washes over Uenoyama, charged with a power so overwhelming that it cuts straight through his indifference and strikes him somewhere deep at his core. In that single instant, the dullness that has grayed his world begins to crack, and Uenoyama finds himself drawn toward a quiet stranger, a damaged guitar, and a song he cannot forget.