Fairy Tail (2009)

S5E32 Hisui Rises!

Title: Hisui Ascends! Plot: As Princess Hisui and Arcadios journey towards Fairy Tail, they unexpectedly encounter Natsu, Lucy, and Yukino. Hisui has developed a device designed to forcibly return lost Celestial Spirits to their realm. However, they soon face a challenge from the fearsome duo of Pisces, who are intent on seizing the invention. This version of Pisces is not the same; they've been transformed into a more sinister incarnation, with the mother now sporting significantly larger jaws...