Su Nian, a quiet and introverted programming girl, is actually the founder of the anonymous emotional APP "Muse". At the opening ceremony, she made a mistake and made the top student Gu Ye's speech the laughing stock of the whole school. In order to make up for her mistake, she joined his entrepreneurial team, but as they got along, she was gradually attracted to this boy who looked cold but was actually delicate.
However, she didn't know that Gu Ye was the anonymous user "Leo" who relied on her the most in her APP. He fell in love with her in real life and confided his troubles to her online. When the project becomes successful and the love affair becomes increasingly sweet, Su Nian becomes increasingly uneasy - does he love the real her in reality, or the perfect "soul confidant" on the Internet?
When the APP crisis breaks out and the vest is on the verge of falling off, can this first love that started with code pass the final verification of sincerity?