During military training, Song Jinxi, a first-year college student, asks her older brother, Ji Yeqi, for a milk tea treat via a red-envelope transfer. But Yao Fanyu, an intern at her brother's company, steals the messages and pretends to be his girlfriend. She posts screenshots on the campus gossip board, spreads false rumors, stirs up misunderstandings, and even throws milk tea at Song Jinxi and attacks her in public. Their counselor, Teacher Zhang, forces Song Jinxi to admit fault based solely on an AI detection result. Song tears up the disciplinary notice, gets her injuries examined, and reports the incident to the police. Her brother rushes back from abroad with a lawyer, and the truth gradually comes to light—but Yao Fanyu refuses to stop. At the military training gala, she approaches Song Jinxi with a cup of milk tea and a sweet smile. Meanwhile, a camera in the corner of the sports field quietly glows with a red recording light.