City: Become Invincible Starting from the Emotional System

An ordinary senior high school student awakens to the emotional collection system "Emotional Harvesting System" when he is about to take exams - it can collect various emotional values ​​​​from others such as joy, anger, resentment, and jealousy, and exchange them for physical fitness, skills, wealth, and even extraordinary abilities. He can exchange for physical strength by harvesting taunting emotions at the scene, get rid of his ordinary physical condition, and taste the benefits of the system for the first time. Let's see how the protagonist shows off his skills!