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.
foreign contaminants 
by surrounding them with one's aura.
المُلوِّثات الغريبة بإحاطتها بهالة المُستخدِم
durch Aura Fremdkörper
zu entdecken und zu entfernen.
pour repérer
et éliminer les anomalies.
elementi esterni circondandoli con l'aura.
и при обнаружении следов чужой магии
уничтожает их.