This is an abandoned family.
He was reviled by the world and ostracized by the nobles. Chunyu, as long as you have this surname, you will not be able to hold your head high and will be looked down upon throughout your life. Although he is a noble, he does not live up to his name, and the treatment he receives is probably worse than even the lower class.
All this stems from a defeated battle.
Fifteen years ago, [Ling], who was evenly matched with the Mo Dynasty, provoked a war on the border. Therefore, the Chunyu family, which was the most trusted and prestigious among the royal family at that time, accepted Emperor Mo's order and went to fight against the enemy. Unexpectedly, not only did they suffer repeated defeats, but they also surrendered to Ling's army. Half of the soldiers defected to [Ling], but Marshal Chun Yuwen's cronies actually broke into the palace and assassinated Emperor Mo. Emperor Mo was furious and ordered not to send reinforcements to Chunyu's army after executing the assassin. After that, Chunyu Wen died on the battlefield, not in battle, but because he was given poisoned wine by someone sent by Emperor Mo.
As a result, overnight, Chunyu's family lost its former reputation and lost the trust of the people and the royal family.
Mo Di Nian had made great contributions to [Mo] many times before he was in the Chunyu family. He was not severely punished, but he was never given an official position again, and the Chunyu family could no longer hold their heads high.