First of all Imma be incredibly biased and say kim taeri deserved more screentime, she was amazing ❣ everyone was but I'm biased~

I think just rating "plot" isn't enough so I'll break it down
*Fantasy elements: 8/10. Alien stories have been done to death. But it is new in kmovies and better yet it was mixed into historical elements
*Cgi: 8.5/10 it was pretty cool, tho the cats were the least believe ?
*Storyline: 7/10. It was predictable, from the villains to "who" might be the new controller (?)..
*Background and built up: 7/10. Adding kids feels like a safe choice to make it more sympathetic, and easier to not build too much world setting before the movie starts
Like gaurd/thunder started the movie by just continuing their work from before the movie starts, so there's less emotional attachment. But with a kid, who becomes the adult we're rooting for, it's a safe way to act like a build-up and growth
*Childhood connection: 7.5/10. If we were forced to have a cliche fine, it was cute cuz mureok was a cutie xD tho I was redisappointed by their obvious attempt at big twist
*Action scenes: 9/10. It's been a while since Action lost it's thrill, car chasing, fist fighting are just a mashed up scene of boom boo pow pows. But this was fun

I was a bit lost on the mages, I mean if aliens exist why not magic? But also one fantasy is enough, tho again their magic vs aliens fight scene was fun

Space sweepers had more flashy cgi and world building. Tho main plot was a cheap safe choice of "kid sympathy". So here there was more story content but less world build up

Even when we realized yian is gaurd/thunders kid, we don't know how she lived 10 years alone in a historical world after being a modern world kid. She was alone, no family, no money. More depth would've been nice. Especially since they showed her going there as a 10 year old. Since the kid looks like taeri I assumed she lived in modern world then in 2032 she went back to the past