[urank (Ura--)] Rindou Mikoto Wakarase Haiboku Matome Hon (Rindou Mikoto)

X-ray (X線) is a visual technique tag where the artwork shows internal anatomy during sexual acts. This allows viewers to see internal ejaculation, penetration details, and other anatomical elements that wouldn't be visible in a normal perspective. The technique is unique to illustrated content and is a significant artistic choice. It frequently appears alongside 'nakadashi' and 'impregnation.'

Dark skin (黒人, kokujin / 日焼け, hiyake) refers to characters with darker skin tones. This includes naturally dark-skinned characters, tanned characters (tanlines), and characters with dark skin as an artistic choice. The tag covers various ethnicities and skin tones. It's often paired with tags like 'tanlines,' 'big breasts,' and 'big ass.'

Impregnation (孕ませ) is a fetish tag focused on the act of getting a character pregnant. This often involves detailed internal views (x-ray) showing ejaculation and fertilization. The tag is closely related to 'nakadashi' and 'pregnancy' but specifically focuses on the conception moment rather than the resulting pregnancy. It's a significant fetish category with its own dedicated audience.