|Manga Debut||Chapter 3|
|Anime Debut||Fourth Death|
|Voice Actor||Trina Nishimura|
- "Tell me, did you come here today to give us comfort? Or did you come here for us to comfort you?"
- ―Aoi to Masao
Aoi is, for the most part, a kind and warm girl. She looks up to Tooru, and when he dies, she is extremely heart-broken.
When Natsuno comes to visit, she notes that he's there a lot and asks if he has any other friends.
- Aoi means "hollyhock" in Japanese and Mutou means "military, wisteria" in Japanese.
- She calls Natsuno "Natsu", signifying a sibling-like relationship between the two.