Yoshio has been bullied by his classmates.
One afternoon, bullies were poking Yoshio with their regent hair and at this point, Yoshio was so devastated and in despair that he was losing hope in life.
At the moment, Onara Goro appeared and, out of blue, began to explain how the human brain functions.
Then, Onara Goro encouraged Yoshio to pay back bullies by surrounding them with fart, making them groggy.
As the result, grogged bullies wobbled toward the house of Japanese Mafia.