Ms. Kakinouchi has said that she is not as strong in the manga. Larva's first appearence Larva first appears when he tries to kill Miyu. He tells her that things of this world are beautiful because their time is short. Miyu recognize's Larva's voice when he comes to kill her. Larva's punishment Larva's voice is taken away and he is forced to wear a metal mask because he did not defeat Miyu.
Larva wears the mask voluntarily, often taking it off.
He speaks, too. Miyu's Mother She is a vampire and gave her husband immortality. She is not a vampire, although she knows that some people in her family become vampires. Lemures Lemures imprisoned Larva and used a deluded human spirit to attack Miyu. Lemures' magic used the suicide of a woman to put the soul of her dead husband into a suit of armour.