I Choose to Be Afraid! the Bamboo Horse That Cannot Be Escaped, the Falling from the Sky That Cannot Be Avoided

What made An Xingchen so angry? What made Zhang Moxuan so angry that he threw a cup? Why did Lin Zhiruo get stuck in the quagmire of these two young masters, and what kind of misunderstanding could cause such an upheaval between them? What kind of farce did the ending between the three people cause, and how did they avert this tragedy?