Chaos of Ming 1628

In the first year of the Chongzhen Emperor's reign, the Tianqi Emperor passed away. Sun Qing, who had traveled from another era, was beheaded at Xingtai before he could even show his skills.
Sun Qing, using the alias of the Sun family of Gaoyang, escaped the massacre by the Wei faction. However, the Ming Dynasty was already on its last legs, and the Little Ice Age brought years of severe cold, with drought, locusts, and plague sweeping across the land...
The Jurchens outside the pass were eyeing Liaodong covetously, while the chaotic troops inside the pass were looting everywhere.
The situation is chaotic and the power dynamics are in disarray; let's change the imperial family's fate!