“I will do anything to reach the truth.” A drop of ink can penetrate the walls, even the walls you took too long to build. After losing her first love due to a traffic accident, Ibuki Sumire transfers to Tokyo. She wanted to escape, to run away from everything that happened. To start over in a place that didn't have him. But a series of clues lead her to investigating the case behind the accident. In that place she learns about the masks people wear. The masks people wear to disgui se their feelings. Sometimes you have to look past what you see on the surface.