Technically Tomoe's Str&End is C&D rank and Ushi 's Str&End is D&C rank
Under newton's law; action=reaction ,She may even crush her own hand before Ushi's
fate parameters are not as important as u think
and even then tomoe is much stronger physically when u factor in all the effects of her demonic oni magic skill giving her charisma,monstrous strength,mana burst and natural monster all rolled into 1 plus she was already famous for her strength in life