I started this drama while it was airing, dropped it because it bored the hell out of me, and picked it up again recently because of an edit.
Before I comment on the plot, I want to say that the younger male, older female trope in this drama, didn't cut it for me. Although the female lead is 28 and the male lead is 22, I rarely ever felt like there is an age difference between them because Lu Jin's character is more mature than Liang Chen's somehow. I don't know if that's a good or bad thing, but I got to say that threw me off, mainly when she acted all childish and all after she learned that he was supposed to study abroad without telling her. He had to stay outside her place in the cold for the entire night, waiting for her to forgive him, like why? She hopped to a conclusion on her own and punished him without hearing that he didn't intend to go in the first place, and studying abroad was forced on him by his father. Seriously, I felt like the male lead was older than her most of the time. That aside, the plot of the drama was pretty good and all, but I wish the second couple's story weren't dragged until the very last episode, and the gaming sequences didn't feel like fillers at a certain point. As much as I enjoyed their little escape to a gaming world, I found them a bit redundant and unnecessary because there wasn't any creativity to them as they always escaped to the same places in the game time and time again.