Seven Sins System

[Main Summary]

Seven Sins System follows Azrael Shadowraven de Nightfall, the crown prince of the shadow realm and lord of wrath. Feared by demons, mortals, and angels, he enters the mortal realm on a secret mission to expand his seven sins power while hiding his identity among humans, vampires, and hostile supernatural factions. The story blends adult fantasy, LitRPG-style system progression, demon politics, battle academy elements, harem romance, and hidden-power conflict around a powerful male lead caught between three realms.

[What to Expect]

– A male-led adult fantasy and LitRPG story about a demon prince hiding his identity in the mortal realm.

– Seven-sins power progression, hidden abilities, angels, demons, vampires, magic, and battle academy conflict.

– Harem romance, monster girls, succubus themes, yandere characters, servants, and supernatural faction tension.

– Strong-to-stronger development mixed with action, comedy, mystery, slice-of-life moments, and mature R-18 content.

[Author’s POV]

The series page includes author-side Patreon and Discord notes, plus a direct tag summary describing the story as mature fantasy with comedy, tentacles, monster girls, yandere elements, succubus themes, magic, demons, angels, a battle academy, harem, system mechanics, and some slice-of-life content.

⚠️ [Content Warning]

This novel includes explicit sexual content, strong language, gore, harem relationships, BDSM-related elements, incest-related material, cannibalism tags, tentacle and succubus themes, and other mature R-18 fantasy content.