Hakata Tonkotsu Ramens is a crime thriller anime series set in Fukuoka, a city known for its high rate of contract killers. The story follows a detective named Zenji Banba and a hitman named Lin Xianming as they navigate a city filled with murder, deception, and underground crime syndicates. The series stands out for its engaging plot, unique setting, and a cast of colorful characters, providing an intriguing blend of mystery and action.