|Game||Shadow Hearts: Covenant|
|Voice actor(s)||Kunihiro Kawamoto|
|Voice actor(s)||Bo Williams|
Enemy in Shadow Hearts: Covenant
"Speak-No-Evil" of the Mutant Apes. His unearthly speed and razor-sharp tektie blade that can cut through steel make him an enemy to be feared."
In the brief time that he and the other Mutant Apes are playable, he uses a unique blade to slice up his enemies at close range.
He can have up to three Hit Areas on the Judgement Ring. However, two more can be unlocked by hacking the game.
|Anti-armor Bomb||50 MP||Hien throws a grenade to deal heavy damage to enemies.|
He and the other members of Ouka's team also have access to a unique combo: "Lightning Flash". He is fought three times over the course of the game:
- Firstly by Ouka as a boss
- Secondly by Yuri and his party as Fuujin
- And finally, Kato later uses his soul to form the Kusanagi Sword.
- Like his fellow Mutant Apes, Raiden and Ouka, he shares his name with a WWII-era Japanese fighter plane, the Kawasaki Ki-61 Hien. The name, Hien, itself refers to the Swallow bird, one of which is tattoed on Hien's combat suit.