>>532300909
Too big.
The ideal harem size is 5 girls and you can get away with something like 8 girls but thats like the max.
Since this is fgo and there are 9 slots on the support page I could as exception concede that much.

But 16 is enterily souless, I bet by the point you reach the 6th one you don't really care anymore and just adding shit you kind of like rather than actually love