Spending a Month with My Sister is a heartfelt life simulation where players nurture bonds, navigate daily adventures, and uncover hidden depths in a sibling’s relationship over 30 days of heartfelt choices. Forge memories, confront secrets, and shape your sister’s future through intimate dialogue and emotional decisions.
Emotional Journey & Relationship Building
1. Sisterly connection: Grow closer through shared activities like cooking, hiking, or quiet nights talking—each choice deepens trust or exposes unresolved tensions.
2. Unraveling secrets: Discover her hidden struggles, past regrets, and aspirations through layered conversations that reveal her vulnerabilities and your own.
3. Moral crossroads: Decide whether to shield her from pain, push her toward independence, or confront truths that could fracture your bond forever.
Gameplay Mechanics & Daily Adventures
1. Time-management simulator: Balance her needs with your own ambitions, juggling school, work, and spontaneous adventures that risk straining your relationship.
2. Unexpected challenges: Weather emergencies (e.g., a sudden illness, financial crisis) that force split-second decisions, testing loyalty and resilience.
3. Memory-driven progression: Collect photo albums, handwritten letters, and mementos to unlock bonus endings tied to moments of emotional intimacy or sacrifice.
Dynamic Character Development
1. Personality shifts: Your sister evolves based on your choices—becoming more confident, withdrawn, or reliant on you, with unpredictable emotional reactions.
2. Multi-layered endings: From familial harmony to tragic rifts, every path reflects the weight of your decisions, with post-credits reveals hinting at unresolved consequences.
3. Seasonal storytelling: The game’s 30-day timeline mirrors real-world seasons—rainy days indoors spark deep talks, while summer trips offer fleeting moments of joy that haunt later winter chapters.


