Fantasy

Kars returns to the Scarlet Devil Mansion, finding his aunts Remilia and Flandre, and Koakuma, altered by Patchouli's new Arousal Marks, which enlarge breasts and trigger lactation.
    Patchouli also invents a magic that allows Kars to liquefy his body for pervasive intimacy and to generate multiple, separate phalluses for simultaneous, multi-partner sex, which he eagerly uses on his family and the maid, Sakuya.
    Novel Tags：Harem，Magical Sex，Body Transformation，Incest (Implied)，Sexual Exploitation
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