Sokaku comes from a clan of Buddhist monks whom are an ancient rival of the Shiranui clan. They hunt and destroy Shura while subjecting themselves to controlled dark entities. Sokaku is said to be the finest their clan has produced. He believes the Jin scrolls to be the source of a Shura and seeks to destroy them.
Sokaku is very serious about the duties of the Mochizuki clan. He's not evil but will use "evil" forces to achieve his goals. He's the type of person who enjoys the simple things of life, like family.
- Necromancy - Sokaku can summon ghosts, demons and imps to aid him in battle. He can also create a mirror-like being, like the Yata people.
- Thunder - Sokaku can call a thunder from the skies.
- Fire Body - Sokaku can curl himself into a ball of fire.
- TAKU-HATSU (A Monk's Begging) - Fatal Fury 3, Real Bout Fatal Fury
- TAKU-HATSU Rock (A Monk's Begging Rock) - Real Bout Fatal Fury Special, Real Bout Fatal Fury 2
- Fatal Fury 3: Road to the Final Victory
- Real Bout Fatal Fury
- Real Bout Fatal Fury Special
- Real Bout Garou Densetsu Special Dominated Mind
- Real Bout Fatal Fury 2: The Newcomers
- The King of Fighters '96 - in the Fatal Fury Team's stage
- The King of Fighters '97 - in the China stage
- The King of Fighters 2002 - in the Netherlands stage
- The King of Fighters 2002: Unlimited Match - background cameo in the Neo Geo World stage (K' Team version)
- KOF: Maximum Impact 2 - Ryo Sakazaki's Normal Outfit-Variation G
- Garou Densetsu Special
- Neo Geo Battle Coliseum - during Akari's Super