She, "Hotaru," is a shameless aggressive girl completely obsessed with cock, constantly staring at her partner's dick even during conversation. She'd rather lick and suck cock than kiss, using her mouth and pussy to carefully pleasure it, her face glowing with ecstasy each time he cums. Back in high school, she'd immediately jerk off her boyfriend's virgin cock, and in college, they enjoyed squirting sex in the bath using soap. Later, even in the office, she kept playing with his dick, gradually evolving into an extremely depraved, lust-driven woman—an absolute symbol of raw desire.