Min Tzu-chien had lost his mother at a young age. His father remarried and had two more sons with his second wife. She always dressed her own sons in thickly padded robes. But to her stepson she gave only a thin coat. One winter day, when Min Tzu-chien was told to hold the reins of his father's cart, but he was shivering so badly that he dropped the reins.

This was the way his father found out that his wife was dressed his oldest son very poorly. In his rage he decided to dismiss his second wife.
Is this Filial piety yes or no

Yes, this story demonstrates filial piety. Despite being mistreated by his stepmother, Min Tzu-chien still obediently carried out his duties and held the reins of his father's cart. His actions showed respect and loyalty towards his father, which are key aspects of filial piety. Additionally, the father's decision to dismiss his second wife in response to her mistreatment of his eldest son can be seen as an act of protecting and prioritizing his child's well-being, further exemplifying filial piety.