Originally Posted by hypo

So this is just new slots to buy, but not for units? What's the point???

To store all manner of enhancement materials, so they don't take up the space in your normal inventory.

I predicted this feature, but 0 slots? Come on...
It loses all sense when buying normal inventory slots brings more benefits. The DMM version had 200 free slots when I actually noticed this extra inventory - that was such a convenient feature.