Summoning: Ongyo-Ki

The 4th of the 6 legendary oni. The corrupted soul of a shinobi, died on the battlefield. The guilt of not having fulfilled his mission brought his soul back to life. It's only 2,5 meters tall, yet one of the strongest among his brothers. It's got a special ability to suppress it's chakra, despite it's huge chakra levels, making it impossible to be sensed by shinobi, except those with a byakugan. It's the ultimate assassin. It's speed is exceptional, yet no matter how fast it moves, it stays silent. It's skilled at Ototon and uses it for it's stealth moves, traps, creating illusions, harm or confusion.