I have 120 slots in my inventory. I leave Manyus from Gathers and 3 Medal awards in my gift box until I have to combine with any in my inventory to make up 10 to upgrade a girl and create space. Like some others, I save the FG for 10+1 draws until I absolutely must create more space.

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Quote Originally Posted by maotd View Post
My inventory size is also 125 units. Currently at 116/125 with 13 ampies/dragons in (and tons of them in my gift box...). Actually it's not that hard to manage. I just need 1 free place for rolling gacha and go through stages. Hopefully, you can have more units than the max without units auto-delete or anything (hopefully, that's the same for the gift box).
The gift box counter and display maxes out at 100. If you have more than 100 items, the earliest ones don't show. I have gone over a 100 a few times, and the oldest items reappear once I claim some of the newer items and get the total back to 100 or lower. I don't log off though with over 100 items though in case there is some sort of auto-delete/balance feature/bug!