Shy college student Kakeru Sorano meets a girl named Koharu Fuyutsuki at a college welcome party. With her striking looks and gentle smile, she seems like someone from a completely different world to Kakeru. But then she cheerfully drops a line that changes everything: "I’m blind." Despite her condition, Koharu is unflinchingly positive and radiantly composed, experiencing the world in ways Kakeru can only begin to imagine. As they grow closer, he finds himself drawn to a special dream of hers: to set off fireworks with friends. Between just the two of them, they share a unique kind of love that's invisible to the eye.