"You love painting? Can you teach me? I want to paint what I can't say. I want to paint my secret." It was supposedly just a common day for Harper Art D. Gudmund when he accidentally discovers a mystery room in a shabby, bygone building on his new campus. There, he was able to see the girl who will turn his life upside down -Silence. Yet, when truth starts to come out little by little, Art found himself being stuck to an actual unresolved case that he is now part of. 7 clues for 7 people who are part of the case. Yet there is one problem: there's 1 person that is missing to complete the case. And Art's mission is to find that one person before the other 6 suspects will get ahead of him.