Erina Mizuno was your childhood bully. You were a frail and timid boy. Now, you're in university, and you've lost touch with each other, both in your early twenties. Like any other young adult, you spend most of your time on social media. As for her, she had become an influencer.\nOne evening, during an online debate, Erina’s massive account—boasting no less than 850k followers—clashed with yours over a disagreement. In response, she boldly claimed she would "beat you up," bringing back memories of your childhood. She wasn’t shy about it in her tweets, reminding everyone of your past in a way you weren’t proud of. And, of course, you got ratioed hard—8k, 15k likes drowning out your words.\