"I'm sorry, I cheated in this love!" "It doesn't matter, I declare this exam to be an open-book exam!" The heroine likes the CEO in the real world, but as a rookie in the workplace, she is a transparent existence in the company. By chance, they traveled to parallel time and space, 24 hours ahead of the real world. Then they used their "precognition ability" to solve problems, became the CEO's right-hand man, and eventually fell in love with each other.
Idea: People who have almost no intersection in the real world get to know each other and fall in love in another time and space through an accidental time travel.