|Name||石田いすき (Ishida Isuki)|
|Hobbies||Digging Up Fossils and Die-Cutting|
She's a second-year student in the Faculty of Geochi, who is single-mindedly focused on fossils and ancient creatures. She is bright and energetic, & she always smiles. The tension increases further when the fossils are seen. The amonite of the hair ornament is important to her As relations progress, she evolves.