How Can I Become Stronger After Being Raised by My Junior Sister?

Before he was five years old, Jiang Hao never imagined that he would live a life like this... Jiang Hao: "Junior sister, why can't I always understand the meaning of the Taoist scriptures?" The junior sister shook her head, "Senior brother, nothing is difficult in this world, as long as you are willing to give up..." Jiang Hao said with a dark face, "No, junior sister, I have to work hard, I have to practice!" The junior sister smiled softly and said: "... Senior brother, why do you always have this weird idea of 'improving'?" This is the story of a senior brother who was raised by his junior sister and strives to become stronger...