Others may not know, but how could Shen Jiadan's father not know that the engagement banquet being held here today was all thanks to Shen Jiadan's influence? He knew more about the relationships involved.
However, now having benefited from his daughter, his daughter has been wronged here, and even if Shen Dad's heart is strong and he is savvy and shrewd, when it comes time to stand up and support his daughter here, he can no longer foolishly side with the Jiang Family.
Although the Jiang Family had provided some help to his own family, it was mostly significant assistance to the family rather than to him personally. Mainly, it was for the benefit of his son.
Yet, regarding his daughter's in-laws, even if the son-in-law were paralyzed, looking at it from his daughter's perspective, they won't skimp on caring for his son. With the support from his younger sister's family, his son could have a smooth career in the military.