Evil Transformation! Myst's Assault

Myst, desperate to kill Jeanne before this mysterious "Queen" gets to her, sets up an elaborate plan to kill her by using her school. Meanwhile, Noin gives her dreams of his memories of Jeanne d'Arc, but with Chiaki being her betrayer. This is so she will feel that she cannot trust anyone. To what lengths will Myst go, to kill Jeanne?