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Let Big Sister Stay by Your Side

Big Sister is a Live2D companion desktop pet game. Once launched, she settles into a corner of your desktop and quietly keeps you company while you work, study, browse the web, or take a relaxing break.

There are no complicated objectives and no need for constant attention. Place her wherever you like and add a little warmth to every moment you spend at your computer.

A Lively Live2D Companion

Big Sister blinks and breathes in real time, while her hair and clothes move naturally with physics-based animation. Her head and eyes follow the direction of your cursor, making every glance feel a little more alive.

Place Her Your Way

• Move Freely: Click and drag the character to place Big Sister anywhere on your desktop.

• Resize Freely: Hover over the character and use the mouse wheel to adjust her size.

• Clear and Complete: The character remains fully visible at different sizes, with optimized edge clarity.

Companionship Without Distraction

Transparent areas around and within the model allow mouse clicks to pass through, so Big Sister will not get in the way of your normal desktop activities. Switch between always-on-top and normal window modes in the settings to suit whatever you are doing.

Right-click the character or use the system tray icon to open the quick menu, access the settings, or exit the game at any time.

Simple, Practical Settings

• Always-on-top and normal window modes

• Simplified Chinese and English interfaces

• System tray quick menu

• Automatic saving of your preferences

Whether you are focusing on work, settling in for a study session, or taking a short break, Big Sister will stay on your desktop and quietly keep you company.