I played the game for about half an hour, and I have no idea if I'm playing it the way it's supposed to be played, more like I'm a blind kitten stumbling around. So, I picked the first quest to return an item(a book, I think) that was stolen by a monster, captured some monsters, but I wasn't sure if I should've captured them or just killed them to get the book, in case one of them had it(now I think none of them had it, and the one that did was some kind of special quest monster).
Eventually I got teleported into an area with a slime that heals your entire party, and there I stayed grinding for a while, but it wasn't fun and it didn't feel like the party was getting stronger cause the game could've spawned some skeletons, that could wipe it out or a cat shogun, who is impervious to any attacks except for counterattacks caused by the shields. BTW, when you capture a cat shogun, the same monsters that couldn't deal him any damage can easily damage when they're the enemies.
Speaking of shields, casting them costs a ton of mana, and there's no way to regenerate it except for having the healing slime heal you, which is strange, cause you have healing potions, but no mana potions(or maybe they appear later).
Also, I tried drawing the map of the level, but I kept making mistakes, so I gave up.
In conclusion: I don't know, I guess this game is just not for me.