Brooding J-pop / dark-pop ballad with female vocals: minor-key piano arpeggios, shadowy pads, and distant, processed drums. First verse intimate and hushed; chorus blooms with wider synths, subby low end, and layered harmonies that twist sweet melodies into something uncanny. Occasional reverse-cymbal swells and glitchy vocal chops to underline the “dark magic” pull of the relationship. Final chorus pulls the tempo back a touch, reverb blooming, then cuts to a dry, exposed last line., female vocals