DO NOT PLAY! Been playing since launch and it just keeps getting worse. Horrible P2W game. Takes absolutely no skill to play only money. Drop rates and completion percentage rates are awful. Fail rates are insanely high and you lose all of your materials. Do not play unless your prepared to spend 1000s of dollars. Even if you spend a little it's a drop in the bucket. I'll never play another Netmarble game ever again. Content is repetitive and boring. I would give it 0 stars if I could.