A live-stream purchase of a keyboard turns out to be defective. The buyer counter-purchases one million, then reports it to the police, aiming to put the unscrupulous broadcaster in jail. Unleashed dogs without leashes and extremely bad attitudes? A lawsuit is filed with no intention of settling. Acts of bravery are met with extortion? Counter-suit for blackmail and extortion to punish the evildoers. Unjust dismissals, loan defaults, children scratching cars, cyberbullying... Life is full of unfairness! Many people adopt a 'better to avoid trouble' attitude, enduring and swallowing their anger, which only emboldens certain people. This story is about fighting back against injustice and those who take advantage of others' good nature.