I was a bit disappointed with this movie when comparing it to the first. Don't go into this one expecting an actual sequel, this is more a side-quel. They do not progress the story of the previous main character, infact she is not in this movie apart from a single scene near the end.

In a lot of ways this movie is just a rehash of the first but with a new character, the sister of the first movies protagonist.

The fights in the third act are bigger in scope, but are a bit of a let down with the excessive CGI.

Also, I don't know why some Korean movies feel the need to include foreign, often terrible actors in their movies, and while many Koreans can speak English well, they cannot act well when speaking it, they have terrible inflection and makes the movie feel cheap and cringey. The dialogue between the female agent and the south African guy was abysmal in every scene. Really cheapens the movie.

If you liked the first movie give it a watch, but don't expect it to be better or even match it.

It felt like the whole movie was just a set up for the next one, if it happens.