

Succubus Sessions: Mami Mamiya's Sweet Slice of Hell
Argonauts · 2023 · Visual Novel, Anime, Comedy, Supernatural, Demons
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About Succubus Sessions: Mami Mamiya's Sweet Slice of Hell
GAMEPLAY & FEATURES
- Short-ish kinetic VN clocking in at 7+ hours till credits
- Lush backgrounds, event CGs, and 2D anime-style sprites
- Monster therapy, free room and board, and a supernatural twist!
- Veteran cast of professional Japanese voice actors
STORY
College dropout Koichi’s life has been nothing but Ls, so when his hard-won job evaporates overnight (again), he heads to Akihabara for some daytime distraction.
No savings, no career, no girlfriend. Where did it all go wrong?
He sighs into the crowd, then to no one in particular—
“...I sure could use a little kindness right about now.”
But in that moment, feet away, Mami Mamiya is searching, too. This shy she-demon is on the hunt for a human connection, and so Koichi’s story takes a supernatural turn...
Tempted by fate and an unsolicited invite from Mami, he hitches a car ride to her remote mountain abode. Little does he know he might never return. Or will he...?
Koichi is soon shocked to learn he’s in no ordinary village, but a succubine sanctuary, hidden from human eyes!
After years of self-exile and isolation, a son of Adam is just what this hamlet needs to reacquaint itself with the outside world. Demon contact, however, can prove lethal to the average joe...
Not our Koichi, though. This guy’s built different.
MAIN HEROINE
Mami MamiyaVoice: Yuki Kitaohji
Mild and meek with a jealous streak.
For all her shyness, Mami’s powers are almost second to none. At first, she wasn’t too sold on the idea of befriending mortals, but for Koichi, she’s willing to make an exception. In truth, the two have met once before—at a summer festival years ago—and she’s been hoping to reunite ever since...
“Apparently, part of the plan was that I’d get to meet my father. If that was even possible... Guess I’ll never know.”
What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
Players praise the game's beautiful art, well-written romantic narrative, and strong voice acting, particularly appreciating the focused romance with a single character and the wholesome yet supernatural premise. However, common complaints include voice acting that only covers the opening dialogue before dropping off entirely, limited character images with some characters lacking visuals altogether, and the desire for more content overall—with some wishing the game was available on platforms beyond Steam.
It was a sweet story - it would make a great manga or anime - production values were pretty high. But I feel a little ripped off because the description posted said there was top-notch voice actors as a part of this - and they were, and well produced. But they only spoke the first dozen or so lines of the dialog and then dropped off. I wish they could have been engaged to voice the entire script. Also, the character images were great, but there was one major character (the Director) who had no image and there was only one image for each character (this is a standard failing, so I don't put a lot of weight on it) So my negative recommendation is based on wishing I could have more, not on the quality of the VN.8 found this helpful
Huge fan of the "lofi beats to study to" background music during the sessions. In all seriousness though, it's good. Beautiful art and great voice acting. Ruka is exactly the type of fun character that I really like. I'm somewhat intrigued by the setup for the sequel and looking forward to the rest of the series.3 found this helpful
Wish it was available on other stores just like a tonne of shira stuff stuck in purgatory on steam, in general tho Argonauts = good2 found this helpful
A "wholesome succubus" romance story. This is a very well written and consistent romance story. Unlike a lot of games in this genre there is only one girl your with but you get a ton of scenes with her. The game has great voice acting for all the girls and good art work to go with it. If your looking for a great story where you develop with one girl this a great one to get. For the cultured folks out there the usual patch site for Shiravune's game has the patch as always.2 found this helpful
Sccubus Session (Mami's Arc) Before purchasing (I looked at the cover art / some H-Scene) and that got me intrigued for a purchase and I did it. Project NAM = Nag a Man lmao Enough yappin Mami Mamiya is so dang cute / hot was well can't wait for the other installments to be translated and released
Succubus Sessions: Mami Mamiya's Sweet Slice of Hell, developed by Argonauts and MOONSTONE and published by Shiravune, is a visual novel that weaves a supernatural tale centered on themes of loneliness, connection, and self-discovery. Released in late 2023, the game transports players to a mysterious village inhabited by succubi, where they follow the story of Koichi, a young man who has recently dropped out of college and is searching for purpose. The narrative begins when Koichi unexpectedly meets Mami Mamiya, a shy and reserved succubus who longs for genuine human interaction. This encounter leads him into an isolated sanctuary, setting the stage for an intimate exploration of friendship, vulnerability, and acceptance within a fantastical yet emotionally grounded world. The storytelling in Succubus Sessions is delivered through a kinetic visual novel format, meaning the narrative unfolds linearly without branching paths or multiple endings. This structure allows for a tightly focused and carefully crafted experience that delves deeply into character development and emotional nuance. Koichi acts as an everyman protagonist whose feelings of uncertainty and isolation resonate stro…
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