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Tentacle-kun by Ura Piro Chaki

    Home › R18 Games › Tentacle-kun by Ura Piro Chaki

    Synopsis

    ■Overview

    Experience training scenes with animation and full voice acting (for trainable heroines)!

    Watch writhing gelatinous tentacles fill the screen alongside screams and moans of pleasure, as female bodies tremble and convulse!

    Raise obedience levels and your own level to unlock more girls for training, eventually leading to the miracle of training three girls simultaneously!

    ■Story

    You are a slime-like creature that lived quietly by the waterside, feeding on seeds, frogs, and lizards.

    One day, after contacting a dead man’s body near the water, you gain enough intelligence to converse with humans.

    Upon discovering that attacking human women and using their bodies accelerates your evolution, you transform into a tentacle creature. Driven from the waterside, you begin hunting girls throughout the city—but something seems off about the girls in this town.

    ■System

    Gameplay consists of movement and training.

    Travel to girls’ locations and conduct training. Both you and the girls have parameters—girls gain “obedience” while you gain “evolution levels.”

    Progress through training and gather information around town to unlock new girls.

    ○Customizable character names!

    ○Post-game still image viewing mode created from video footage!

    ○Training skills that increase alongside evolution levels!

    ■Characters

    ○Itagaki Nami

    The first girl you target. Simple-minded and enjoys the experience—she wants to keep you as a pet. Secure a lair from her.

    ○Omori Miyuki

    A suspicious woman who frequents the city park at night, the location where you gained intelligence. She appears to be investigating you, meaning she knows of your existence. You’d like to overwhelm her and make her your servant, but something about her seems dangerous.

    ○Oyamauchi Chihiro

    A girl from the memories of the dead man who gave you intelligence. Apparently she was the object of his unrequited love. His memories have become your obsession—you desperately want to capture and ravish her.

    Editorial Review

    ★3.2 / 5 — henhenta editorial rating (our own assessment, not the DLsite official user score)

    Tentacle-kun positions itself within the creature-protagonist subgenre of adult simulation games, a niche that’s remained relatively consistent in its appeal despite occasional mainstream attention. The premise—playing as an evolving slime entity rather than a humanoid aggressor—offers a thin layer of narrative distance that the genre occasionally employs, though execution determines whether this distinction matters.

    The animation and voice acting for training sequences are the primary production anchors here. Full voice work across multiple heroines is a genuine value-add in a market where many comparable titles skimp on audio production. The emphasis on synchronized animation during restraint scenarios suggests technical investment in visual feedback loops, which directly impacts the appeal of extended training mechanics. The obedience progression system ties gameplay duration to narrative unlocks—specifically the three-girl simultaneous training scenario—in a way that creates clear mechanical goals beyond raw content consumption. The sci-fi framing (cryptic note about “something seems off about the girls in this town”) hints at narrative scaffolding, though the truncated synopsis leaves its substance unclear.

    This works best for players specifically seeking tentacle-focused simulation with robust mechanical progression and female voice performance as core features. The combination of restraint-based gameplay with incremental obedience building appeals to a particular subset of training-game enthusiasts who prioritize audio-visual production quality over narrative complexity.

    Tentacle-kun delivers straightforward creature-training simulation with genuine production values in its animation and voice acting—sufficient for committed enthusiasts of the subgenre, though the narrative framework remains underdeveloped enough that it primarily serves as set-dressing for mechanical progression rather than thematic substance.

    Related Tags:

    adult  |  Animation  |  Simulation  |  tentacles  |  Restraint

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