Ichika Hashifuna hails from Kashiwa City in Chiba Prefecture and celebrates her birthday on July 31st. Standing 142cm tall and weighing 36kg with blood type O, her distinctive features include glasses and a snaggletooth. Academically, she demonstrates exceptional aptitude in mathematics, chemistry, and biology while encountering challenges in history and classical subjects. As a member of the "go-home" club, she avoids formal extracurricular activities. Her primary passion involves conducting scientific experiments, driven by a relentless pursuit of empirical inquiry and verification. Despite her youthful appearance, she actively investigates phenomena to test or validate them. She possesses a remarkable intellectual capacity with an IQ of 190, though her behavior frequently displays unconventional or eccentric traits.