Kafka (Honkai: Star Rail), vacant expression, rolled-up eyes, tongue protruding, legs spread wide, peace sign with both hands, on a poolside lounge chair, panoramic view, 8K quality, adult content, fully nude, vagina exposed, anus visible, prominent clitoris, pubic hair retained, urethral opening visible, BDSM scene, metal collar, full face visible, nude with sheer fabric draped over