As Shinichi and his parasyte continue their unasked-for coexistence, the parasyte in his right (migi) arm decides to take on the name of "Migi." Shinichi realizes that parasytes are involved in the ongoing mincemeat murders. Feeling alone in his discovery, Shinichi grapples with frustration. Unbeknownst to him, he is about to meet another parasyte for the first time...