What is it like to go with your in-laws to an amusement park? Well, fairly interesting especially when one side of the in-laws is very satisfied with their family member's spouse and the other side isn't.
Zi Han had integrated into the Yi family more than Yi Chen had integrated into the Zi family. That is he hadn't gotten into Zi Xingxi's good books yet. This meant he was a little nervous when he was around his future mother-in-law.
In Zi Han's defense, he did try to open a dialogue between the two but failed. Despite the silence between them, there was definitely an improvement. At least Zi Xingxi was no longer snorting or humphing which was unbecoming of a sophisticated lady.
It was because of this that Zi Han made sure that when they reached the advanced intricate version of the teacups ride that Yi Chen would sit with his mother. As to why they were on such a slow low adrenaline ride? It was because of Ming Ming.