People said this game is F2P friendly so i gave it a shot. I have been bamboozled. The only way to recruit multiple at a time is to grind for free gems to then buy a package that gives you enough currency to pull. Sound fine until you find out that the package is only available once a week. So if you want to summon more you have to pay. All that combined with an energy system to limit you so that you can't earn more gems than you should makes me not want to recommend this game. Very scummy business practices. A weeks worth of grinding only to not hit the unit i need and then getting rotated out is the worst system i've ever seen. No wonder i've never heard of this game. The game would have been great otherwise. Gameplay isn't amazing but casual enough for a mobile/side monitor experience.

Edit: Also very unfriendly to new players. This game likes to roleplay so everything is very convoluted. Event items you can buy with currency don't tell you what they do, ex: (Lifetime contract: All the necessary fields are already filled; all it needs is a signature.) Okay...BUT WHAT DOES IT DO!!??? Sure after playing a while i can assume its to fully level up a character but very unfriendly to new players. Then there's adding friends. Want to send your friend code to someone? Well its not called friend code its 'business registration no'. You would think that number would be in the 'add a friend' menu but nope, they hide it in the setting for some reason. Very unintuitive design. Its like they've never played a game before.