Noisy Funeral: Stygian Riverside - Melancholic

A Spell Card of Lunasa Prismriver, the electronic musician (a Touhou LW original). She recreates a musical performance that took place near the Sanzu River. Even among the souls of the dead, poltergeists are unique. The three poltergeist sisters are different beings from the deceased girls who share their names (Layla's true sisters), so they exist outside the bounds of the Yama-controlled reincarnation cycle. Apparently, they learned to play their respective instruments after Layla passed away. So it stands to reason that none of them should have memories of playing music with her. However, when they play together in the Ruined Western Mansion, memories of their days with Layla come flooding back to them...