Until the Defiant Stepsister Falls

A girl who, by misfortune, has become the protagonist’s target.
She is a female student attending “Hinami Gakuen” (Hinami School), which is the protagonist’s alma mater, and she commutes by train every day, waking up early in the morning.
The protagonist mentally refers to her as “Shōjo H” (Girl H), as he does not know her real name.
Girl H has an introverted and timid personality and is not good at talking to people. Even when she is groped (chikan) on the train, she cannot speak up, and the harassment escalates without her being able to consult anyone.
It appears she wishes to get off the train at “Hiiragigaoka Station (WAVE 3)”, where Hinami Gakuen is located, but will she actually be able to…?

Nobles who look down on the common folk and act with utter tyranny. A military that uses its might solely to subjugate the weak. Men who view women as nothing more than outlets for their sexual desires.
In order to fundamentally change this rotten country, Elisa built up her strength and enlisted in the military, aiming to rise through the ranks to the upper echelon. One day, Elisa is granted a massive opportunity for promotion and is sent into a dungeon alongside an incompetent subordinate for what is supposed to be an exam.
However, that dungeon was actually an erotic trap dungeon managed by the state, designed specifically to turn women into sex slaves!
And so begins the journey of an incompetent subordinate turning the strongest boss into a sex slave…

Alone With My Step-Sister is an 18+ sandbox visual novel where every room in your empty house is a playground for teasing, chores, and steadily hotter dares.
Your parents are gone for two weeks; you and your razor-tongued, 21-year-old step-sister are left to “keep things tidy.” Between breakfast dishes and late-night movies, the tension climbs from playful shoves to bedroom invitations – all driven by a single Lewd Level that tracks how bold she’s willing to get.
Master the daily sandbox loop – Morning, Afternoon, Evening, Night – deciding where to go and what to do:
Chores & Money: wash dishes, fold laundry, fix the Wi-Fi and earn allowance for gifts.
Random Events: walk in on her stretching, showering, napping on the couch – react or peek and accept the consequences.
Risk-&-Reward Choices: push too hard and trust drops; play it smooth and her Lewd Level rises from 0 (hands off) to 5 (anything goes).
Level-Up Quests: four milestone scenes—cook-together mishap, wine-fueled dares, movie-night lap ride, bedroom phone confession—each unlocking new actions and positions.
Free-Roam H-Scenes: once she hits Lv 5, choose from 10 unique positions (missionary, standing shower, spooning, cowgirl, etc.) plus special endings for every random encounter.
Gallery & Achievements: replay every CG, listen to every moan, and hunt Steam achievements for perfection.
Fast banter, branching reactions, and a dynamic suspicion meter keep every visit fresh: keep things quiet or risk a “how’s it going?” call from Mom that locks you out of fun for a day.
Can you juggle chores, keep the house from imploding, and still coax your step-sister into the wildest vacation of her life?
Find out when the parents leave—and nothing’s off-limits but the neighbors’ ears.

The centuries-long conflict between the Neo-Terran Confederacy and the Alliance of Free Planets is at its climax. FSS Lamashtu, new experimental cruiser of the Alliance's navy, prepares for its maiden voyage. However, the captain of the ship might have his own nefarious designs...

The local TV station is seemingly overtaken by a Kaijin in disguise, and it’s the Red Ranger’s job to get to the bottom of it, will he fight for justice or lose himself trying