Chapter 125. "Old Fierce Dog" is a work about growth regardless of reality. It warmly talks about the fetters and protection on the road of growth. In Chapter 125, the protagonist grows up. The novel mainly tells: Tao Huainan was deprived of a pair of eyes by fate, and time gave him a slow life. In his small, colorless world, there is now a "little brother" who depends on each other. The little brother is his blind stick, his eyes, and the "puppy" he always talked about in his childhood jokes. However, the journey of growing up cannot escape the whip of fate, and fragile children cannot escape the black nightmare. He always tries to navigate the uncertain future and treacherous waters alone until he becomes a better and tougher version of himself.