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About Marshmallow Imouto Succubus
Marshmallow Imouto Succubus is a visual novel about Tsukikawa Keisuke, who dreams that his innocent younger sister, Saki, enters his bed with lustful eyes. Saki is naïve and believes babies are made by kissing, so Keisuke is relieved when she seems like her usual self the next day. But their father tells him that a succubus is lurking within her, leaving Keisuke to choose between his dear, innocent sister and the succubus's allure.
The story has two possible endings. The game includes Japanese voice acting except for the protagonist, voiced-line playback and a history backlog.
Frequently asked questions
The best price for Marshmallow Imouto Succubus is $19.99 at Steam. It is the only shop with an offer that activates in your country.
The minimum requirements for Marshmallow Imouto Succubus are: Windows Vista, Intel Pentium III, 512 MB RAM, 250 MB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Marshmallow Imouto Succubus is a single-player game.
No. Valve rates Marshmallow Imouto Succubus as Unsupported on the Steam Deck.
Yes. Marshmallow Imouto Succubus is the full base game. You need nothing else to play it.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.











