>>533786669
>>533810259
Actually, I've just noticed you meant PoFV in particular.
This game is weird because almost every character seems to have the same for "hitbox_u" on their .sht file (2.8), but then you've got a few, like youmu and reisen, which have 8 as their value, which makes no sense because it would mean their hitboxes are almost thrice as big. So I can only assume the game just ignores the value and gives everyone the same hitbox size.