SPOIL ME PLS!!!!!!!!

Perez knows everything, he's also blackmailing that maid, fully aware about the poisoning. He instructed the maid to follow the plan of the empress to poison the emperor to corner her. She will be detained and will meet astana there, perez will ask astana to throw the empress under the bus.
Astana thinking that angenas are so greedy and he shouldn't get punish withem will go against her mother.