Once you beat Mana Khemia 2: Fall of Alchemy once, you could quite feasibly leave it behind and feel like you’ve had a good experience. You’ll have enjoyed a 40-50 hour RPG, and you’ll have seen the story wrap up in a satisfactory manner.
It doesn’t have to end there, though. There’s a second protagonist to play through as, and while that protagonist passes through the same dungeons as the first over the course of the game, their core narrative is completely different and they have a whole other supporting cast — and, this being an Atelier game, they have their own unique items to craft, too.
For some people, being asked to play through a whole RPG again is a hard sell, though — even if said replay offers mostly new experiences. How can you convince people to keep playing after the credits have rolled for the first time? Mana Khemia 2: Fall of Alchemy provides a great example of how a good New Game Plus mode can keep players engaged in the long term without feeling like you’re retreading old ground.