The game is rather confusing and the horrible translation quality on top of cluttered text layout for skill descriptions also doesn't help. While it's nice that whenever you see a highlighted word, usually to indicate skill effects and interaction, you can just tap on it to see what that word means, but again the translation quality really hampered the experience.
The gameplay I honestly think also need to be readjusted somewhat. It's a match-3 game like Candy crush combined with turn-based. Every time you move the gems to match, that's 1 turn, but if you match 4 gems and above at once you get an extra turn within that turn (meaning turn 1, you match 4 gems you get another turn and it is still considered turn 1) rather than a power-up. However each stage either ends within 2 turn or you can't get good rng and have to waste time setting up a match 4.
For example, one of the early stage you get a bonus objective of clearing 12 blue gems and 9 red gems in 5 turns. But either my team killed the two enemies too fast and I can't clear the bonus fast enough, or I stall trying to clear the bonus and went over the turn limit or the enemies kill me.
Which is a shame because it's an otherwise cool game. I especially find the pixel art during story cutscene charming.