Round 1: Normal Inuyasha with all his abilities, speed is equalized. (Excluding Meido)
Round 2: Demon Inuyasha speed equalized vs Nnoitra sealed state
Round 3: purified Demon Inuyasha with all abilities. EOP1 Nnoitra sealed form
Round 4: Demon Inuyasha during Naraku final battle Resurrection Nnoitra
Round 5: EOS Inuyasha vs Resurrection Nnoitra
Fight takes place in the underworld.