- Blood, Violence, Gore and Ero-Guro (Erotic gore)
- Cannibalism
- Religious themes and imagery
- Dub-Con (Dubious Consent)
- Non-Con/Rape (Non-consenual sex acts, abuse, corrective rape)
- Queerphobia
- Body Horror
- Porn (pinups, consentual sex acts, BDSM)
- Age gap (between adults)
- Dark kinks (netorare/cheating, mindbreak, abduction, corruption, ryona etc.)
- Lolicon and Shotacon
- Incest
- Abuse (conversion therapy, child abuse, domestic abuse, animal abuse, etc.)
- Suicide and self-harm
- Body Shaming