Fatal Tea and Fractured Hearts - TMIW season 1 & 2

Stepsisters Yue Shield and Soleil Goldfield have spent their whole lives together. Yue, from a military and police family, was adopted by Heiress Soleil's family after her parents sacrificed themselves to save Soleil's mother and give the girls the time to escape kidnappers. Now, as adults, they are reunited in South City.
Season 1 - Fatal Tea and Fractured Hearts
When her stepsister Soleil is poisoned by a toxic herbal tea, it leads CSI Yue Shield and her new associate, Detective Jon Stonecastle, to a mysterious group calling themselves Sons for Heirs whose rhetoric encourages gender bias and has caused the deaths of hundreds of pregnant women and their unborn daughters.

Season 2- Sanctimony and a Stepsister's Secrets
Polyglot Naya-Mei Xuilan looked forward to being adopted by her aunt and cousin in South City after her mother's death, but more, she dreamed of leaving the monsters and nightmares of being bullied behind. But when she and Biru are attacked during the Spring Festival, she makes the shocking discovery. Biru's bully was using her connections at the elite White Academy for Academic Excellence to continue harassing the gentlest person Naya ever knew. While Biru lay in the hospital dying, Naya=Mei devises a terrifying plan to humiliate the sanctimonious heirs of the wealthy families of South City. Money, privilege, and righteousness spawned from a lie can't resist the fire of a girl who has nothing left to lose. Can CSI Yue Shield and Detective Stonecastle find the proof of the criminal activity before a girl who believes that to beat the monsters, one must become a monster acts?