That Time I Got Reincarnated as a Slime S00 E12 Visions of Coleus: Great Phantom Thief Satoru

"Ascend into your true form."

Aslan visits Rimuru to thank him for saving his sister, Zenobia. They discuss her illness and Souther's behavior, and begin to suspect that the court physician, Gustav, is behind both. Rimuru dons yet another disguise to investigate further.