|Debut (Manga)||Tough c279|
|Family||The Great Orca (father, deceased)|
Shiyachi looked up to his father the Great Orca even wanting to become a pro wrestler just like him. Which was why watching his father devolve into a worthless drunk was really hard on him. Even being forced to sit in his father’s blood and watch him die after he slipped and fell didn’t change his dream. In fact it just strengthened his convictions to become a better pro wrestler than his father ever was.
While on a run Shiyachi was challenged by Bull Mashida in an effort to promote himself. However Shiyachi was made aware of this before hand so decimated the unprepared Bull. He was later challenged by Kichi exited Shiyachi went at Kichi like a rocket. However Kichi stopped the fight before it could get serious in order for Bull to challenge him to a rematch in the ring. The two ended up meeting in the Monster Wars.
Shiyachi ended up dominating the match at first his middle kick giving Bull flashbacks of the time they first met. However he refused to accept defeat and started to get serious unfortunately it still proved to be not enough. Not willing to let all that work be for nothing Bull fought on and continued to push Shiyachi. No matter how many times he was knocked down Bull kept getting up. The fight seemed to be turned around when Bull was able to perform the Kyogan Gaeshi and then went into a full pounding rage. Despite the pounding the ref didn’t stop the fight. Shiyachi turned to match around again when he places Bull in a leg lock. Still Bull refused to give up and stomped on Shiyachi’s face who acknowledged Bull’s strength by returned the favor as he switched positions, but Bull was able to get out. The two eventually forsook skill and started traded punches. Eventually the ref was forced to stop the fight Even though Shiyachi won Bull left the stadium to the cheers of the crowd.
Shiyachi is next seen while training angered that it isn’t him facing Kichi next. So he went to watch his fight with Tomioko Banai so that he could confront Kichi after the match to challenge him.
While training for his match Kiryu informed him about what really happened to his father. Reinvigorated Shiyachi decided to wear his fathers mask during the match to honor him. Sadly Shiyachi proved to be no match for Kichi and went down after one counter punch 3 seconds after the gong rang. Shiyachi was devastated upon finding out that he lost not willing to let it end like that he rushed out of his locker room to challenge Kichi again instead he came across kiryu and Phantom Joe fighting.
Shiyachi is considered a Neo Pro Wrestler. He runs 15 kilometers a day while wearing an extra 30 kilos, without fail and he has been disciplined in several martial arts, and his current coach is a kick boxing legend. When he works out he wears a body suit to help them create the perfect body for fighting.