Semantic Error is nicely produced. There isn't much that is original about this BL, be it the enemies-to-lovers plot, the 'opposites attract' sort of romance or the problem that one party is going overseas. However, the production value is high and the computing metaphor is nicely sustained throughout.

There is nice attention to detail. I like how Sang Woo's costume changes reflect the changes in his personality, like how he stops wearing checkered shirts and then stops wearing a cap everywhere. And while the enemies-to-lovers plot may have at least one party being rather toxic, in this case, they are mostly just being childish.

While the series has been very well received, I somehow find that an additional something could have brought it to greater heights. The BL couple is likable; they look cute together and the kissing scenes are nicely shot. Yet, I can't help but feel that something more could be done about the depth of their love. We see them thinking about each other and pining for each other after they have a fight, but perhaps the complexity of each of their feelings could have been more strongly depicted. And I'm not talking about the introduction of passionate sex scenes or things like that. But when Jae Young gives Sang Woo a birthday present, for instance, perhaps the process of how he prepares the present could have been shown to show how much he really cares. Sometimes the scenes that do help to show their feelings are a little too brief. The symbolic significance of the scene in which Sang Woo looks at a picture Jae Young has drawn on his hand could have been explored more deeply. It could show Sang Woo's sadness when he thinks that Jae Young is disappearing from his life. It could also show how Sang Woo is being wistful thinking about how quickly the time he spends with Jae Young has passed although Jae Young has been a nuisance to him at first. Of course, it can also show that he is thinking of how they won't last long as a couple even if they start a relationship. Unfortunately, the scene is a little too brief to really help explore Sang Woo's thoughts and emotions fully.

The characters are people who are easy to like and care about, which is always a good thing for a BL series. However, I think I could have felt more for them if the full potential of the scenes had been fulfilled.