Eden's Girl: Isekai de Heroine Pinch ni Naru Shima

A secret society "Chaos" that plans to conquer the world. Yukina is a member of "Zeus," an organization that protects humankind from such evil hands. Yukina heads for a search with her partner Ellis in order to investigate the mysterious isolated island that suddenly appears, but she gets lost on the way.

(Source: Kill Time Communication)