The phrase represents digital images, specifically designed to fit the screen dimensions of a smartphone, that feature Eula, a character from the game Genshin Impact, and the Song of Broken Pines, a greatsword weapon also from the game. These images are intended for use as a customizable background on a mobile device.
Such customization provides aesthetic personalization for users. Using character or weapon-themed backgrounds can signal a user’s affinity for the game and its associated characters. Historically, personalized device backgrounds have evolved from simple patterns to complex digital artworks reflecting individual interests.