Hamsterz Life Hammy holds more Hamsterz
It is possible to have Hammy hold six Hamsterz for you — five with Hammy and one out. Also, the more Hamsterz you have, the more you can go to the bedroom and get presents which lead to getting bigger cages faster.
The image featured at the top of this post is ©The Legend of Heroes: Trails of Cold Steel III key art / Original