Sachiko Shinozaki

Sachiko Shinozaki (篠崎 サチコ) is the main antagonist of the Corpse Party series. She is also known as the Girl in the Red Dress (赤い服の少女). While she was alive, Sachiko was shy and reclusive. She neither had any friends nor spent her time socializing too much. She loved her mother dearly and her death enraged Sachiko, because of which she became a bitter and vengeful spirit. Consequent to her death, Sachiko became the sinister and murderous tyrant of Heavenly Host and used her fatality to ensnare innocent victims to secure their demises. Customarily, especially in Corpse Party: Book of Shadows, Sachiko showed off that she doesn't want to just kill her victims in the line of fire, but wants to play with the victims, pretending to be their friends or letting them free just to kill them later, like an ordinary child would with their toys. She is typically accompanied by Yoshikazu Yanagihori, who brings and traps the victims for her. She first started trapping children in the school so her mother wouldn't be lonely, but eventually it became solely a source of amusement. In the end, Satoshi Mochida and the others proved to her that nothing she did made her mother happy, which consumed Sachiko with remorse and substantiated that her love for her mother is what mattered most to her at the end of the day, and earned her rights to enter the afterlife, fabricating her as the only spirit who was killed in the school that was able to achieve such.