Description

10 Days with My Bratty Stepsister turns an unexpected reunion into a tense, choice-driven countdown as Nanaka moves into your cramped apartment for ten days. The affectionate companion you remember now keeps her distance and answers with sharp remarks, leaving you to navigate an awkward household where every conversation can change the atmosphere.

Listed under Punkif, this completed visual novel combines a close-quarters story with branching decisions and 2DCG artwork. As the days unfold, your choices shape interactions with Nanaka and steer the narrative through a complicated step-sibling relationship. The limited timeframe gives the story a clear sense of momentum, making each day another opportunity to discover what lies behind her difficult attitude.

Version 1.0.0 is available for Windows, with English, Japanese, Korean, and Simplified Chinese text alongside full Japanese voice acting. Also known by its Japanese title, なまいき義妹とヒミツの10日間, the game features mosaic-censored visuals and a finished storyline for players seeking a complete visual novel experience. Download and play to see where your choices lead over ten eventful days.