In That Time I Got Reincarnated as a Slime Season 1, Episode 18, "Evil Creeps Closer," Phobio is manipulated by the Moderate Harlequin Alliance into becoming the vessel for the powerful monster Charybdis, seeking revenge after being defeated by Milim. Simultaneously, Rimuru strengthens diplomatic ties with Blumund and continues the ruse of Youm as a hero while Charybdis revives and begins a march toward the Jura Forest. This episode reveals Charybdis is a magical cloud and the child of Veldora, driven by Phobio's hatred.
Watch the full episode, titled "Evil Creeps Closer," to see these events unfold on platforms like Disney+ Hotstar or Fandom Wiki for detailed summaries. Tensei shitara Slime Datta Ken Episode 18
