Hyperdimension Neptunia Mk2

I recommend waiting until New Game+ to get this trophy, since New Game+ opens new areas for level building. You need to get everyone to level 99, including the optional characters. Level 99 requires 31,732,731 exp. The new areas are Powerlevel Island and Panan Jungle, with Panan Jungle having the stronger enemies. Be sure to partner up each character with a character with EXP+ support to make this go much quicker. If you are feeling daring, you can try the higher ranks in the coliseum for good experience too.