Miraculous Ladybug Season 5 Episode 18 Emotion Episode Title: Emotion Episode Description: Adrien and Kagami are invited to the "Diamond Dance", a party for VIPs and their children, against their parents' wishes. Marinette decides to join him, taking the place of Zoé, who ditched the event. There, she finds out "Adrien" is actually Félix in disguise. Using the Peacock Miraculous, he transforms into "Argos" and uses a sentimonster called "Red Moon" to erase people from existence, intending to create a world where he and his closest friends are free from other people's control. When her Lucky Charm fails, Ladybug tries to talk sense into him, but he erases her. When Adrien complains about missing Marinette, Argos initially fails, forcing him to bring everyone back. Realizing the error of his ways, Argos remorsefully releases Red Moon from its existence. Later, Kagami decides to stand up to her mother, but Adrien remains submissive.