Feng Jiahui played games out loud late at night, and actually asked Su Wanyi to share the cost of the sound effects. During the argument, Su Wanyi splashed water in retaliation, but instead had fake victim evidence fabricated against her by the other party, who stirred up public opinion in the class group. Facing the pressure of the counselor's mediation and her isolated situation, Su Wanyi calmly collected key evidence such as recordings and activity trajectories, exposed the lies one by one at the hearing, and ultimately forced Feng Jiahui to receive a transfer punishment, defending her own rights and interests.