Yu Aoki is a Japanese manga artist. He made his serialized debut with "Singular" in 2015 and is known for crime and medical suspense manga distinguished by detailed artwork and dynamic action scenes. He illustrated "Back-Alley Dogs" ("Bakarei Dogs") and its sequel "Back-Alley Dogs: Loser," based on original stories by Jun Yagi, bringing to life a hard-boiled tale of two unlicensed surgeon brothers operating on the fringes of society. His best-known work, "Back-Alley Dogs," combines medical drama with crime suspense through fast-paced storytelling and gritty visual style.