Dr. Crombel sitting in his helicopter hopes that M-21 doesn't get killed by the Infected, before he reaches the base. Suddenly the pilot tells Crombel that someone is there on the roof, who looks outside to see Frankenstein standing there. He concludes that he must be the one the Mary was talking about and introduces himself. He states that Frankenstein is one of Category B species, called Vampires.
Inside the base, M-21 and Infected fight with the Infected easily dominating. M-21 tries to destroy his head in order to defeat the Infected but only to get stabbed by one of the branches coming out from his back. Infected claims to finally kill M-21 and tells him that when he was infected by M-24, some of his memories flowed into him. He calls them pathetic for doing something like searching for names and hits M-21 into the wall destroying it. He then tells Rai to wait until he kills M-21 and asks him to make sure he doesn't start crying. He then strengthens him muscles and attacks M-21 with full strength, only to be stopped by Rai, using just one hand. M-21 wonders why Rai saved him, but Rai tells him not to misunderstand as he only did so as he can't stand for mockery and insult against himself.