Eternal/Undying: Even when 相手 "slays" Ju, Ju isn't gone
Not Even Here: What 相手's fighting is just Ju's spirit
True Form: Cannot be interacted w/ by 相手
True Form: Is beyond conception for being perfect
Impossible: At the end 相手 never really had a chance
Ju's the perfect platonic manifestation of a "swordsman"
As the paragon of swordsmanship, Ju's paradoxically already perfect yet infinitely improving—transcending 相手 endlessly, rendering 相手's powers/words meaningless in this context
At the end, Ju absorbs 相手's finisher & reflects it back
So ultimately, while 相手 may momentarily surpass Ju, in the next moment, 相手's simply already transcended