Michitaka is able to see the marks left by others. The paths they’ve followed and the objects they’ve touched are all tinged with colours that are unique to each individual. Even though it is useful at times, it is mostly a troublesome ability. Before his second year, his father asked him if he wished to live by himself at the old-fashioned Ouka-sou, which was managed by his cousins. Since he had always wanted to live alone, he jumped at the chance. However, when he arrived with great excitement, he was welcomed by the silver-haired Ouka. He did not notice any colours emanating from her. “I am what you call… a ghost.” Together with his cousins, childhood friends and various upperclassmen and underclassmen from his school, the most unforgettable days have begun this spring.