With wives as numerous as clouds and soldiers as numerous as a million, you say he's a useless

A year after her mother passed away, her scumbag father, who had risen to power by living off his wife, remarried and had a son with another woman.
For many years, the stepmother appeared gentle and generous on the surface, but in reality, she was relentlessly harassing him, like a venomous snake.
After Ye Cheng'an transmigrated, he decisively resigned from his position as heir apparent, left home, and went to guard the border.
Later, his stepmother cried every day, begging him to come home.
Ye Cheng'an: Home? Where do I have a home?