After seeing the comments, I just had to write a review. Did you guys watch the same movie as me? I didn't find it boring. Yes, it's like a typical Chinese action-comedy. I had a couple of laughs in this movie... so I just had to say this isn't boring. At least, in my preference. Even though the story isn't as meaningful, but I still found it fun.

Bolin's Korean was decent, but it had a Chinese accent that makes it unnatural and awkward/mismatch for his acting. He did a great job on speaking Korean. I was really glad they didn't dub his voice. Son Yejin and Shin Hyun Joon's performance were great. And I love the other two Chinese guys! They were the funniest.

Overall, the movie was enjoyable. I actually find korean-chinese production refreshing. However, It's not something I'd rewatch. We all have our preferences, but I suggest you would enjoy this movie if you would not take it seriously and technically.