Rion Akao

An old friend of [Sakamoto](https://anilist.co/character/196522/Tarou-Sakamoto) and [Nagumo](https://anilist.co/character/264336/Nagumo) from their time as students at JCC. Rion is [Akira](https://anilist.co/character/287914/Akira-Akao)'s aunt, having taught her how to see the "paths" which lead to a person's death. Her current whereabouts are completely unknown.