The second Witch encountered by Haruto Tsukishiro in the dream world. When she was a child, Mana's family was murdered by three teenagers who received light sentences for being minors. Desiring revenge, Mana became a Witch and began hunting down the culprits through the dream world. By the time Haruto catches up to her, she has already killed two of the culprits and is about to confront the third, who promptly fights back and attempts to kill Mana. Haruto steps in and kills the murderer, saving Mana and allowing her to return to the real world.

She returns in the later episodes to help convince Eve not to destroy world and instead return to Heaven and reunite with God. As Haruto chooses to come with Eve, Mana and the other Witches bid them farewell.