Mimi yori Harmonia

Lured by a shady note into an empty music room, Nene opens the door to find… a pair of headphones? But not just any pair of headphones, a luxurious pair of headphones that had helped popular musicians the world over create beautiful music! Listening to her favorite song through them awakens Nene’s love for headphones, but one more question – who brought her here?

(Source: Manga Planet)