The story is written like a poorly made peanut butter and jelly sandwich, it is still eatable, but boy is it messy.
The two biggest issues strangling the potential here are pacing and power scaling.
**
Pacing:**
We never actually get to see the hard work anyone puts in or feel how bonds are built. Characters just show up stronger out of nowhere, receive last-minute power-ups mid-battle, or express sadness we’re simply told about. The pacing never gives readers enough time to connect with the cast or care about their struggles.
Power Scaling:
The power system feels like a game of “whatever the author needs at the moment.” Rules are created just to be broken by the main character, which could be fine if it were done cleverly, but the execution is all over the place.
It’s never clear whether someone’s strength comes from their core level or their skill. Early chapters hammer in the idea that higher cores and fins mean faster, stronger fighters. It’s told and shown repeatedly, with the ML being the exception to this rule.
Fast-forward to around chapter 50, and suddenly a one-core girl can pierce through a four-fin warrior who controls multiple elements, and even throws her weapon so fast the higher-ranked fighter can’t react or defend. That wouldn’t be a problem if the author hadn’t spent so much time emphasizing a power system they then ignore whenever it’s convenient.
Overall its got some nice ideas going for it, and an interesting plot buried under poor execution. If you can overlook the messiness of it all it isn't a bad read.