🏖️ Start a heart-fluttering summer cohabitation story with your pink-haired twin-tailed little sister!
The latest title in the My Cool Girlfriend series, My Tsundere Sister, has officially launched on Steam — a new visual novel loved by 20,000+ players from the previous title! ————
Priced at $1.99 USD, players can claim official commissioned cosplay photos ✨🎀
My Tsundere Sister supports English text. The English localization was created with the assistance of AI translation and further refined through manual editing and adjustments.
Set during a summer vacation when your girlfriend is away, My Tsundere Sister offers approximately 3–4 hours of gameplay. We look forward to your exploration!
The game is priced at ¥11 in China, with a 10% launch discount available. The theme song album "Their Secret Melodies" is also released alongside the game.
Players who add the game to their library can receive a free HD CG image pack and cosplay photo collection, and also participate in a giveaway event for exclusive merchandise.
More details are explained below.
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🎫 Complete the Collection, Save More
My Tsundere Sister is now available in specially curated bundles, combining different styles of visual novel experiences. Complete the collection and enjoy additional discounts!
- "My Wings" Bundle
A special bundle featuring My Cool Girlfriend, My Tsundere Sister, and the theme song album "Their Secret Melodies" from both games.
Complete the collection and enjoy an additional 10% discount.
-"Find a Wife (Today Only)" Bundle
My Tsundere Sister has now joined the Love Speedrun Collection!
Together with The Seven Days I Spend With You, My Cold Girlfriend, and Renai Zuzyaohan, these titles form the "Find a Wife (Today Only)" Bundle.
Complete the collection and enjoy an additional 10% discount.
🎰 Ownership Rewards
After owning My Tsundere Sister and reaching 2 hours of playtime, you can receive the following rewards:
[Digital Bonus] HD CG Image Pack
[Digital Bonus] Officially commissioned cosplay photos and short videos
[Point Reward] LSP members can receive 100 points by checking in through the launcher
※When claiming the digital bonuses, please make sure that the following privacy settings on your Steam profile are set to "Public": "My Profile", "Game Details", and "Inventory".