Iginio Straffi, creator of the six teenage fairies in the hit “Winx Club” TV franchise, is launching a new animated series titled “Mermaid Magic” that will drop globally on Netflix on Aug. 22.

“Mermaid Magic is a show that pushes the boundaries of animation quality for TV,” said Straffi, creator and founder of Rainbow. “Every frame is crafted with meticulous attention to ...