The Defeat of Hawk Moth

From an anonymous DM on the Ladyblog, Ladybug and Chat Noir are able to defeat Hawk Moth. But what happens in the following days pulls them apart.
After three years of separation, can Ladybug and Chat Noir come together to defeat Hawk Moth's successor?

Based on Miraculous: Tales of Ladybug & Cat Noir.
Miraculous Ladybug AU