The Romantic Beauty Four-Color Silkworm Highlight Palette, a multi-purpose makeup palette designed for natural, light makeup looks. It is frequently marketed for creating "lying silkworm" (aegyo-sal) under-eye effects and features four shades with various finishes, including matte and pearlescent. 

The palette typically includes shades like #01 Sweet Apricot and #02 Sweet Peach. Its formula is designed to be: 

Low Saturation: Features soft, subtle colors that are easy for beginners to layer and blend without becoming "patchy".

Multi-Functional: While primarily for eyes, it can be used for light contouring, highlighting, and as a soft blush.

Fine Powder Texture: Uses upgraded powder technology to ensure a smooth, delicate application that adheres well to the skin.