The Niwaka Samurai Impersonator Arc is the second story arc of the Hakata Tonkotsu Ramens series. It focuses on Shunsuke Saruwatari, a hotheaded new hitman in the area; a private investigation that brings Xianming Lin face-to-face with the leaders of the organization he betrayed; Kazuki Saitoh's continued efforts to escape the company that wants him dead; and Abe and Yamamoto, two disgraced hitmen using the Niwaka Samurai's reputation for their own ends.