Haruna Ibuki was a member of the basketball club and one of the victims who was killed in the days of disaster after a bus accident. She ends up becoming delirious from vitamin deficiency starting eight days into the disaster.
Plot (Visual Novel) Edit
Grisaia no Rakuen Edit
After she discovered that her best friend was fatally-stabbed by Chiaki Sakashita, she snapped and repeatedly stab Chiaki with a pair of scissors before a panicked Yoshihiko Ochi smashed Haruna's cranium with a nearby rock.
The cause of death of everyone there was found to be an infection by Hepatitis E due to the consumption of infested human flesh. In Amane's bad ending, Amane found a note left by Kazuki that states infection came from Tamaki Hirooka's corpse.
However, according to Kazuki's recollection, this was not the case for Haruna Ibuki. As the result from having her skull split open by a rock, she died 2 hours later from cerebral contusion.