|Manga Debut||Chapter 1|
Kiritsubo Mayumi is a human from Rou's previous world.
In the manga, Kiritsubo Mayumi was Tomokui Kanata's colleague (She was unnamed in the light novel). She invited him to go drinking with other colleagues. At the end of that night, she was too drunk and Kanata brought her to his house to rest.
- Tomokui Kanata (Colleague)