A powerful malevolent entity that has taken over the domain around First High School. It was somehow born from a girl's death and the panic spreading among students. It hides in the thick gray fog, observing Yue Yin with countless eyes and twisted limbs. It tactfully moves aside when it senses Yue Yin has no intention of fighting, clearing a path for her to leave. It is afraid of Yue Yin intervening and waits for her to leave before feeding.