Ryuu is a central fighter in the Street Fighter series, a disciplined martial artist who travels the world seeking stronger opponents and self-mastery. The name "Satsui no Hadou ni Mezameta Ryuu" refers to Ryu awakened by the killing intent known as the Satsui no Hado, a dark power that threatens to corrupt his fighting spirit. This version of Ryu represents a major internal conflict in the series, contrasting his usual calm, honorable path with the danger of surrendering to darkness.