Fairy Tail (2009)

S5E30 Signal of Rebellion

Title: Rebellion's Call Plot: The planet is plagued by erratic weather patterns and catastrophic events, keeping the Fairy Tail mages on high alert. Natsu and Lucy accept a mission to explore unusual shifts in celestial phenomena, only to discover it’s a trap. When a massive sea slug ambushes them, Lucy finds that her usual Celestial Spirits refuse to respond to her summons. Just as the situation grows dire, Virgo shows up, but her demeanor is strangely altered. It soon becomes clear that her primary goal is to exact revenge on Lucy!