Midori is a cheerful young girl with a strong sense of justice, always willing to help people even though it puts her in danger. She is famous on the Internet due to her cosplays under the name Dolly. Looking up to her deceased father, who was a suit-actor, she strives to follow in his footsteps and be a hero. Her earnest faith in love and justice even manages to move a demon.
Midori will join the party on the 4th day. Depending on the protagonist's choices she might leave on the 5th day, and if so will never rejoin. Midori leave the party on the Naoya/Kaido or Yuzu route, but will rejoin again on Yuzu's.
↑ 1.01.11.21.3"Characters", Devil Survivor: Official Material Collection, Atlus. Published by Udon Entertainment. English. (1 ed.) p. 36. ISBN-13: 978-1926778730.