Jinkoku Mazuka (時間 馬塚れい子, Mazuka Jinkoku) is the other main protagonist of Tears of the Mazuka: Endgame (The other being Enko Sarutobi) and the main antagonist of Tears of the Mazuka: Checkmate. He is a Missing-Nin from Yamagakure. He is also a former member of the Yamakage Council and a current member of the Third Generation of Akatsuki. Before his descent into darkness, he was nicknamed Koutoki (ガーディアン時間の, Guardian of Time) because of his Secret Time Release.