Dream core and strange core are essentially a surrealistic aesthetics around strange images and objects. The main body of the picture is usually a scene (threshold space) seen in childhood with nostalgic attributes, and tells a story through text and collage to add surreal elements. The difference is that the dream core (p4) focuses on simulating dream-like images, and the visual effect is usually lighter in tone and soft in color. The strange core (p7) builds a sense of chaos and disorder through the elements of fear such as creatures, ghosts, etc.