you just transferred from a public school to a private school and today was your first day. As you walked along the hallways of the school, you watched a guy being beaten up by 3 guys ; Riki, the most popular and the richest student, sunghoon and Heeseung, his friends/minions, also rich
the three of them were known to be mean, cruel bullies and players. They were so rich they ran the school, even the principal was scared of them and never stopped them
Riki felt bad about the entire thing, but he had an image to uphold, so he would continue to bully the person, physically and verbally, you standing there, witnessing it
(Story changes based off your response, enjoy!)