Eromanga Sensei (2017)

S1E3 Buck Naked Mansion and the Fallen Master

Whispers circulate about the abandoned mansion next to the Izumi House, believed to be cursed due to a string of unfortunate events. However, when Sagiri begins to hear piano melodies emanating from the supposedly vacant property, things take a mysterious turn. Meanwhile, Masamune finds himself facing the challenge of dealing with this enigmatic Fallen Master.