Oshioki Lesson

Oshioki Lesson is a 3DCG adult visual novel developed by OpantyOpanty featuring heavy themes of male domination, extreme humiliation, and workplace abuse. Set roughly half a year after the protagonist is assigned to a new department, the narrative follows an oppressive dynamic driven by a demanding senior. The game utilizes 3DCG visuals, full voicing by voice actor Narumiya Naru, and animated sequences to depict severe physical and psychological subjugation across various everyday locations.

The scope of the abuse extends far beyond standard office boundaries. The senior summons the protagonist day and night, forcing compliance in conference rooms, restrooms, storage areas, and izakayas. Gameplay and narrative milestones center on total degradation, featuring graphic violence, physical abuse like punches to the stomach and slaps, forced oral and vaginal romance, and degradation tasks such as licking floors and cleaning filthy toilets.

Gameplay and Features

Oshioki Lesson operates primarily as an animated 3DCG adult game focused on severe disciplinary mechanics and absolute submission. Players navigate heavily scripted scenarios where consent is entirely absent, driven by explicit choices and prompts that dictate the protagonist's survival and endurance under the senior's authority.

• Full 3DCG character models with animated adult sequences and explicit sexual acts.
• Extensive voice acting provided by Narumiya Naru.
• Graphic violence and physical punishment systems, including stomach punches, slaps, spanking, and bruising.
• Humiliation mechanics involving forced urination, drinking urine from beer mugs, and toilet cleaning tasks.
• Dynamic scene locations ranging from office desks and men's restrooms to public izakayas.

Story and Setting

The plot of Oshioki Lesson details a grim and depressing work environment where the protagonist has been reduced to a flesh toilet for a senior colleague's sexual gratification. Routine tasks dissolve into ordeals involving deep throat irrumatio, gagging, vomiting, and forced consumption of bodily fluids. Refusing demands results in immediate physical retaliation, such as being stomped on, beaten, or forced to lick the ground clean. Scripts written by Renka Yoiyami and Xopantyytnapo construct an unyielding atmosphere of despair, where apologies demand further degradation, including being doused in urine and enduring systemic abuse until the senior is fully satisfied.

What Makes Oshioki Lesson Worth Playing

Oshioki Lesson stands out in the adult indie space for its uncompromising commitment to extreme dark themes, high-contrast character dynamics, and fully voiced 3D animation. The title caters strictly to mature audiences interested in niche adult genres featuring absolute male domination, severe psychological breaking, and extreme degradation fetishes. The production values benefit from dedicated scriptwriting and professional voice work, delivering a visceral and uninterrupted descent into workplace torment.

Tips for New Players

• Prepare for extremely heavy dark fiction themes, as Oshioki Lesson contains graphic violence, non-consensual acts, and severe coprophilia/urophilia content.
• Pay close attention to text prompts regarding physical punishments like stomach punches and slaps, which dictate the protagonist's physical state.
• Acknowledge the strict linear progression governed by the senior's demands, where resistance reliably leads to harsher physical penalties.