Luminous is only interested in chloe who comes back she doesn't forgive yuuki but she cant exactly touch him without guy being angry 
Guy and the eastern empire leader have a game going attack each other using only pawns octagram is sorta guys main piece in this game and yuuki is his newest piece

Guy goes ballistic on rimuru for it and barges into a meeting which diablo slams a door in his face
Guy tells rimuru about primordials and Leon and luminous are shocked that he has both given bodies and names to jaun and violet due to Juan harassing Leon and violet the same

She be distracted for a bit with Granville and yuuki will be caught by guy and he'll some how worm his way put of it then join the eastern empire (he worked out a deal with guy to let be a spy in the empire and rimuru begrudgingly accept this alliance because of guy)

In this battle the guide intervenes and creates a monster out of destroyed ships so to counter it Liam creates a mega zord

Mad hatter being the ML
In my opinion I prefer heart mad hatter seems to be mirroring his pain to so yoons

The staff is something that changes with each person so who fields it changes the stafff to their desires and also changes the person a little aswell
Amy has now turned into a witch who unconsciously charms everyone around her 
She assaults the duke's estate looses the staff to Anna which turns her into an ice saint 
Amy retreats while Allen learns shes a witch and they form a plan to assault the capital which Amy has no taken complete control

I dont know i think it has something to do with chloes skill she can manipulate time but she cant controll it and maybe forces her body to grow 🤷
After this she can change her form from adult to child 
Also remember the spirit labyrinth and what chloe summoned that is when chloe returns from the past