Zzha-ying is shocked to learn that his son's grades are so good that he is considered a "scumbag" by the other students. He also learns that the three students with glasses are very strong and will not be defeated by the school's students. The school will have no choice but to attack the "woman with glasses" and the "three young men" because they are "very strong" and "will not win against them" . The only way to stop this is to stay at the school and not move. Zhe-ying tells his father that he has given up on his studies because he has a father like him who is always being mocked for his grades. The idea of revenge inspires him to play the guitar because it is the only thing he can do to release his depression. Anyone who has a better grade than him will be targeted, and they will be able to experience the "power of my guitar twice as much" as he does.