Listen to me. Have you seen Lighter and Princess? No? Watch that first. You've seen L&P already? Then be prepared for a downgrade when watching this. These two shows are quite comparable. The setups are the same (a college romance in the beginning) and the basic structures are similar. Both include a breakup at the midpoint with a timeskip (not a spoiler), with a significant business focus sprinkled in between while ML desperately attempts to salvage whatever love they have for each other. It's difficult not to compare them.
The first 14 episodes or so are fairly standard. Nothing to write home about. A college romance. He's a sneaker designer starting his own business, while she's a struggling college student entering the world of business finance to support her mother. Slowly but surely, a romance develops, only for the show to break them up in the latter half of the story. Sound familiar? I told you it's similar to Lighter and Princess. This is where the writing truly begins to test your patience.
I wouldn't call it toxic per se but the "will they, won't they" shtick was really annoying. The pushing each other away in order to protect the other person had my eyes rolling numerous times. ML is particularly guilty of this, and his decisions led to significant consequences.
There is a second couple, but many would find a professor-student relationship pairing weird, but I didn't think much of it. Their storyline was not particularly interesting by the end anyway.
For me the best thing about this show was the opening duet performed by Arthur Chen and Sabrina Zhuang. Really good.