Well now let us begin with season 2 and 3 or miraculous: tales of ladybug and cat noir!!

So in the following season we are introduced to many more characters:) we get to know that miraculous has a guardian named master fu! So basically ladybug and cat noir cannot do all the things everytime! Correct? Because one cannot do everything. So they require the help of other heros to defeat various villans akumstized by hawk moth!!

Here we are introduced to Kagami, Luka, Felix and many more new characters

So the thing is that whenever ladybug required help she detransformed (i.e turned back to her own marrinette self) and went to master fu to fetch specific miraculouses... Then she gave the miraculous to those whom she thought had the potential to control their powers!! Once their work is done they return the miraculous to Ladybug who then further returns it to master fu!!


But then in the season 3 finale (due to a small mistake done by marinette) master fu is finally found by hawk moth and then master fu to was forced to reveal the identities of our lady and kitty but instead he chose to transfer the miracle box to ladybug akka Marinette, and made ladybug the Guardian!!!!

So marrinette's life was already complex as ladybug but it became even more difficult and puzzled as a gaurdian!!