- Voice Actor (CV)
- Aya Uchida
- Gender
- Female
- Age
- 18
- Birthday
- May 3
- Role
- Protagonist
- Identity
- Third-year high school student, Demon Summoner, and active operative of Jp's (the Geomagnetism Research Department under the Meteorological Agency)
Personality
Gifted in both academics and appearance
Struggles with self-doubt
Warm and considerate toward others
Unwavering resolve when it matters most
Io Nitta is a high-achieving third-year student who shares the same grade as the protagonist. After a mock exam, she finds herself caught in a catastrophic subway incident, which leads her to download the Nicaea app and awaken as a Demon Summoner. She subsequently joins the covert organization Jp's. Initially reserved and hesitant to voice her own opinions, Io gradually transforms through the bonds she forges with her allies. Facing the brutal reality of battle against invaders, she discovers a fierce courage and sense of duty to protect the world she holds dear.