The abandoned western-style mansion next door to the Izumi residence was a much-rumored "haunted mansion" in the neighborhood. Megumi claims that she saw a ghost in a white dress through the window, but Masamune brushes her aside, saying it was only her imagination. But even Sagiri begins to claim that she heard a sound of a piano from the house next door. As Sagiri is too scared to draw, Masamune decides to take matters into his own hands and heads to the mansion for Sagiri's sake. There, Masamune witnesses a shocking view of an unexpected person--.