Inma Keiyaku Sex Succubers ~repack~ 〈Windows〉

: Other games use the relationship as a narrative trap. A player's failure to manage "lust points" or "bad tiles" can lead to the protagonist's transformation into a demon, effectively ending the human romance and beginning a darker supernatural existence. Thematic Comparison of Narrative Structures Succubus Review - Fan Dads

While the term is a common trope, there are specific titles that use this name: Inma Keiyaku Sex Succubers

Inma Keiyaku, which translates to "demonic contract" or similar concepts in Japanese, refers to a pact or agreement made between a human and a demon or supernatural entity. When applied to the concept of sex succubers, Inma Keiyaku implies a contractual relationship where a succubus provides sexual services or companionship in exchange for something, often energy, life force, or a specific favor. : Other games use the relationship as a narrative trap

In some fantasy settings, succubi are depicted as entities that form contracts with humans, often for mutual benefit or to achieve specific goals. These contracts might involve exchanging energy, emotions, or even life force. When applied to the concept of sex succubers,

Often a mundane human who accidentally or desperately summons a succubus. The relationship starts as a survival or utility contract rather than a romantic one.