Little Sister

Game premise and mechanics

Little Sister is a Live2D desktop companion game for PC. Players interact with a character who appears on their desktop, providing a visual companion while they work, study, or browse. The character is a girl wearing a cat-eared hat and pink glasses, and she will silently occupy a chosen corner of the screen. Players can move her around, resize her, and choose different wallpapers to customize their desktop setup.

Character behavior and interaction

The game includes one built-in little sister character who displays natural movements like blinking and breathing. She reacts to the player’s mouse movements, following the cursor with her eyes and head. Players can click and hold to drag her to different positions on the desktop and use the mouse wheel to adjust her size between 55% and 450%. There are options to hide or lock her, allowing for more focus on tasks while still having the animated character nearby.