Responses
She's prolly the principal wife( lawful) her son will be the legitimate heir so she also knows her positions shields her. Her husband won't punish her for the sake of illegitimate son. That's why he send seme to the battlefield probably hoping he'll die there, that's why he makes him do the cruelest shit since seme is easy to dispose if something were to go wrong
This is the first time I've ever seen a stepmother confess so calmly and with dignity that she disliked the illegitimate child and that her son felt jealous about him. Like damnn I've never seen this in stories before