In one embodiment, an electronic device is disclosed. The electronic device includes a processor and a memory. The memory stores instructions that, when executed, cause the processor to obtain character data indicating an appearance of an avatar, to obtain asset data indicating a costume or an accessory of the avatar, to generate region information indicating a relationship between a plurality of regions of the appearance of the avatar and a location of the costume or the accessory, and to store the asset data and the region information in the memory.