The background music when the protagonist spits out energy in the movie version of 100 thousand cold jokes

When I was in junior high school, our classroom was on the fifth floor. I am a very honest person. At that time, there was a nice person in the class (the boss of the class) who always bullied me and asked me to go downstairs and fetch him water to drink. Finally, one day I broke out and gave him some urine or saliva when I was fetching water. From that day on, I took the initiative to fetch water for him every time. . . .