In fact, working as a zookeeper is far from easy. Instead, it is tedious, tiring, and even full of danger. Regarding why he has stuck to his post for many years, besides his love for wildlife, Xu also recalled his unique "moment of career satisfaction" thanks to Yuhui. "Once, I had a small bruise on my arm. Noticing it, Yuhui gently touched my arm, comforting me like a human." Accompanying animals for 16 years, Xu summarized his experience with one sentence: "If you treat animals well, they will treat you well. Animals will never be deceived by words."

While fans express their love by sending gifts generously, Xu's love is embodied in his intimate relationship with Yuhui, whose interesting daily life is frequently shared in Xu's WeChat Moments. On International Workers' Day, he captured the expression of Yuhui sitting on the parallel bars and pouting. The photo was posted with the caption, "I'm not happy working overtime on May 1." "I have to stop evolving; otherwise, I'll be pushed to work like a human." Amused by such comments under Yuhui's dishwashing video, Xu took a screenshot and saved it. He even knows Yuhui's little quirks. "The tourists find it interesting seeing Yuhui. Yuhui also finds it interesting to observe the tourists." Immersed in describing Yuhui's every detail, Xu seemed to ignore anything else and left no chance for interruption. Xu sees a different Yuhui, more multifaceted, behind his intelligent and cute portrait known by the public.