K.O.3an Guo is part of a chain of series called "Zhong Ji" or in english "K.O." K.O.3an Guo was the first one and only one I have watched so far. I'll start by telling you that it is not a follow up story. Although, they have the setting (7 dimensions blah blah blah), you don't need to watch the preceding K.O. to enjoy this one.
This is one of the few modern wuxia (martial arts) dramas. In this drama, there's some law that the police can't get involved in school affairs. In each school, it's like normal school except it houses martial artists. Some of them are "ma gua" which means they have no martials arts. They have this whole hierarchy which isn't explained very well. But basically, in this drama, school and people are fighting for power. It's also loosely based on the Romance of The Three Kingdoms and all the characters are named after characters from the novel.
Weird isn't it? That's my reaction to the first episode. The series was meant to be comical although the comedy subsided a bit later in the show when things got serious.
Story: The story was much better than I expected. It actually kept me hooked. That they actually had plans for this drama. Though sometimes things were resolved in a weird way. But that's what this drama is..."weird". For example, in this drama, chickens are extinct and they're treating like precious, godlike animals. The emperor's seal is even a golden chicken. But chickens turned out to play a good part in the drama. The first couple of episodes made you think that this was mostly a gag drama but it evolved into much more than that. The character development was beautiful <3. Each of the main characters had their own story and their own issues and we got to watch them overcome those issues.
Acting: The acting is bad. But since this drama isn't very serious or there is little to no serious acting to be done, it's fine. Also the reason that the acting is bad, is because the cast are minor celebrities (except George Hu) and mostly musicians/rockers. Such as Dong Cheng Wei.
It's a wuxia drama, therefore terrible CGI effects. But the story, the friendship, the bromance, the romance- you can look past all the flaws.
Music: Like I said, the cast are mostly musicians so the music is great. I have downloaded most of the soundtrack. After watching this drama, I grew a love for chinese rock music. The background music stuck with me many months after completing this show.
The drama is long. But don't let the number of episodes and the weirdness turn you away. It suprised me how good this drama was.