Miraculous Ladybug Season 4 Episode 20 - Ephemeral Episode Title:EphemeralEpisode Description:Due to Cat Noir missing, Ladybug calls upon multiple allies to defeat a villain. Noticing this, Su-Han asks her to find out his identity. Ladybug has Cat Noir reveal himself, then plans to have Viperion erase that moment. However, Ladybug falters when Cat Noir reveals himself as Adrien, causing them to run out of time. The two enter a relationship and soon Marinette reveals herself as well. Gabriel deduces Adrien's identity, revealing himself and taking his Miraculous before turning his son into "Ephemeral", with the power to speed up time. Shadow Moth, as "Shadow Noir", soon claims the Ladybug Miraculous, but Luka has Sass revert time, preventing everything that happened after the identity reveal. However, it also creates several temporal anomalies, which Ladybug and Cat Noir fix by using their space powerups to recalibrate a timing satellite. Later, Ladybug makes peace with Su-Han.