[Suzerain of Sheol]

IT'S SO GOOD EVERYONE SHOULD PLAY IT AND BE MY FRIEND OMG

But no, in all seriousness, it's legitimately difficult and slow to progress. It isn't like the typical ftp where the story quests are a joke, they ramp up insanely and start throwing both very powerful high-level enemies at you, and put you in decidedly disadvantageous positions, with you being outnumbered as bad as 10-1 in some of the later stages, counting enemy reinforcements.

It has autobattle, but punishes it by breaking your gear if your characters get KO'd, so it really encourages you to sit there and play it unless you're grinding easy content.

The summoning rates seem pretty harsh, you can get a lot of fodder-summon trash evolved to higher tiers from the premium gate, which is pretty painful, but that might just be me being dumb and not waiting for a proper rate-up.

Great game, though. Recommendation stands. :P