Why I possibly won't be playing Reaper

[Raikai]

Complained about their inventory being so bloated they won't be able to play reaper due to lack of inventory/dresser space if nothing is done about it.

I wonder... One thing I've noticed is that their code runs on a very (weirdly) constrained inventory space limit, to the point that they will use the slots of belts to increase weapons and rings.

I kind of noticed that the "Key items" section has a huge availability of slots - I wonder if these couldn't be used? Especially because since the quest log is limited, there's no way you can fill that space.