Pound It (Miraculous)

It's the future. Ladybug and Kitty Noir (Chat Noir isn't alive) fight battles, and learn to support each other. Chase Anderson, who is Kitty Noir, learns more about the miraculouses, and Marinette. Marinette, learns to let go of Adrien/Chat Noir, who was murdered when they were 14-15 years old. Through these new steps, both Marinette and Chase learn about each other, and learn to be able to let go.