Gameplay Hints:
1. One offensive skill at lvl 4 is always superior to 4 offensive skills at lvl 1. So plan accordingly. The stronger the skill get, the more it costs, but you can select the lvl of that skill whenever launching the attack, by aiming stronger or weeker (top left corner will show once the next lvl of the skill is used). At higher levels magical skills give some OP finishers, so you wanna invest in those ASAP.
2. As always - magic is way more superior in this game. So start with getting the Sword for the heroine, but quite soon you wanna switch to the Apprentice Wand.
3. You can have up to 4 party member in your group: Erina (main character) and 3 mobs who she gives birth to. Each mob has different skill sets, different starting and grow stats, humanoids can equip weapons and even equipment (so plan accordingly)
4. Unless you plan to spend money on HP potions - level up your healing ASAP, and as soon as you can acquire Dryad ("Collect Treant seeds" quest) get one of him. His skill sets is one of the best till the end game (And potentially even at the end game)
5. Monster can have 4-8(9?) additional skills, beside Wait and Attack. Each mob skills differs. If you manage to get a "Body control" skill and manage to get a higher lvl mob under that spell - you can see the skills it will have, without needing to capture it and raise it.
6. Som of the mobs and their skills are added in the folder "Monsters skills & stats" in the root folder.
7. IMHO: Thief (mission 2), Dryad (mission 6), Medusa (mission 7) - are the mobs you need till the late late game. They have balanced skills, Healing, Leeching, support and some other stuff. Haven't gotten the last 4 mobs though yet, tbh.
8. If you get the new mob into your rooster and plan to lvl it - start with mission 1 or 2 for a first few times, and let that mob lvl up killing the easy stuff, while getting the first few skills. It's much faster that taking that new mob to the high lvl mission and not been able to kill anything
9. "Eliminate Killer Bee swarms" quest (mission 5) is one of the first best places to train your characters. Great disposition of the bees, especially if you have wind or water skills at lvl 4 for their finishers. And the bees use healing which brings killed enemies back to life so you can cycle for a little bit until they run out of mana or you get tired of killing shit).
10. You get exp by landing the finishing blow (the higher the enemy lvl - the more exp you get). Thats why mission 5 is a great spot to train you skills and charas if yuo try to catch them all and try them yourself

I know you are there, crazy collectors
11. Save files are at: C:\Users\
YOUR USER NAME\AppData\LocalLow\Kanetsu\TheCurseOfLust. Copy-paste if you wanna try the mob, but don't wanna lose you lvled party member in case you not gonna like the new one.