
我的妹妹未来
"Pact between us" is a FMV. After the loss parents, you and your younger sister become siblings who only have each other. You must tenderly care for her daily life.What kind of woman will your sister grow into? Every arrangement you implement during her upbringing carries profound weight.
Offers
What are keyshops?Official stores
Official stores with direct support.
About 我的妹妹未来
《Pact between us》is a life-simulation game featuring real actors.
Synopsis:
The story is heartwarming, focusing on a pair of siblings who suddenly lose their parents and grow up relying only on each other. After their parents' death, the older brother discovers he was adopted and has no blood relation to his younger sister. Despite this revelation, he chooses to raise her nonetheless.
Addressing Controversy:
It's unexpected that such a simple game would be labeled with the "LTP" tag and escalate into widespread online harassment. It's unclear who actually played the game before drawing these conclusions. Our entire content promotes positive values, has undergone the platform's strict review process, and contains absolutely no elements that guide or imply negative values for minors.
A child actor portrays the sister during her childhood stage, participating in various lessons and social practice activities.
As time progresses within the game and the sister grows up, she is portrayed by an adult actor.
Regarding the deliberate distortions and selective interpretations of what I referred to as an "emotional ending": This refers to the point in the game, after the sister turns 18, where the brother chooses whether to reveal the truth of his origins. The "ending" then deals with how the sister processes and views her relationship with this brother, with whom she has shared a life of mutual dependence since childhood, despite the lack of blood ties.
Legal Warning to Harassers:
Furthermore, this is a warning to certain cyberbullies: Your actions in obtaining personal phone information through illicit channels to conduct harassment have been reported to the police and a case has been officially filed 30 minutes ago. Consider the consequences.
Final Statement:
Only those who have actually seen the content labeled as "LTP" have the standing to comment on / report / criticize it. Conversely, any statements made without seeing it are considered slanderous accusations.
Game Feature Descriptions:
[Study]
The protagonist (player as the brother) can arrange for the sister to take various lessons.
Lessons primarily increase different attributes.
Studying consumes in-game currency.
[Social Practice]
The protagonist can arrange for the sister to participate in various social practice activities.
This will increase certain attributes and earn in-game currency.
However, it generates significantly more fatigue.
[Rest]
The protagonist can arrange for the sister to rest at home or go on outings/trips.
This reduces the sister's fatigue level and may even increase Affection Points.
Affection Points are a prerequisite for unlocking the best emotional ending.
[Wardrobe]
The protagonist can choose different outfits for the sister to wear.
Changing clothes affects the sister's mood/state while at home, varying depending on the outfit worn.
Game details
Game details
Age ratings
Game modes
Languages
Audio & text: Simplified Chinese
Text only: English
Features
我的妹妹未来 price history
Lowest tracked price: PLN 28.79 (Jul 7, 2026) · current best: PLN 31.99.
我的妹妹未来 player count & reviews
87% positive reviews all-time · 3 peak players in the last 30 days.
我的妹妹未来 — frequently asked questions
Where can I buy 我的妹妹未来 at the cheapest price?
Right now the cheapest offer for 我的妹妹未来 is PLN 31.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price 我的妹妹未来 has ever been?
The lowest price KingsPrice has tracked for 我的妹妹未来 is PLN 28.79 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play 我的妹妹未来?
我的妹妹未来 peaked at 3 concurrent players on Steam in the last 30 days (highest on Jul 14, 2026). The player chart on this page updates daily.
How can I get 我的妹妹未来 at a discount?
Create a free price alert on this page and KingsPrice will email you when 我的妹妹未来 drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10
- Processor: Intel Core i3
- Memory: 4 GB RAM
- DirectX: Version 11
- Storage: 30 GB available space
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 10/Windows 11
- Processor: Intel Core i5 or AMD equivalent or above
- Memory: 4 GB RAM
- DirectX: Version 11
- Storage: 30 GB available space











