Karasuma Fran

Fran (フラン) is a member of the Kamisato Faction and apparently a Gemstone.

Appearance
Fran is described as a girl in pajamas with antennae sticking out of her backpack, which is full of radios, and surgical scars on her neck, apparently together with an implant. She also holds a giant balloon which she uses to float around.

Background
According to Kamisato Kakeru, Fran was supposedly made into a Gemstone via an implant from a, though he isn't sure how much of that is true, and the rest of the Kamisato Faction are split over whether she really was abducted or not. At some point, Fran came into contact with Kakeru and ended up joining the Kamisato Faction.

World Rejecter Arc
Around the time that the rest of the Kamisato Faction were attacking the Kamijou Residence, Fran was researching Sample Shoggoth together with Ellen.

Abilities
Fran is said to be a Gemstone, however her ability is currently unknown. She has an extensive knowledge pertaining to astronomy and radio waves, and is part of the front line of the Kamisato Faction’s information warfare team, together with Ellen.