Become a Bandit in Shaosongli

What should I do if I travel to the Song Dynasty and encounter the Jingkang Incident? Of course we must resist the Jin and protect our country. However, the imperial army was defeated again and again, and they took up the banner of the Taihang Mountain bandits and became the mainstay of the resistance against the Jin Dynasty. They once again wanted to change the dynasty, but Longhu stopped at Bagong Mountain...