Aiko Umesawa

A member of Hope's Peak Academy's Student Council. Aiko appears to have a childish and naive personality. She's quick to trust others and panics and cries easily.

She and the rest of the council were summoned to the school's old building late at night and forced into a killing game by Junko Enoshima and Mukuro Ikusaba, an event that would later become known as the The Tragedy of Hope's Peak Academy.

When the Killing Game started, Aiko tried to protect herself by wildly waving a pan around in a panic to protect herself from Asukasei shooting randomly towards her. Her panic was lessened after Tomohiko reassured her that everything would be okay, causing her to lower her guard for a second. This resulted in her death as Tomohiko stabbed her in the abdomen and then threw her body to distract Asukasei.

Ironically, Aiko would indirectly avenge herself on her killer when he attempted to strangle Asukasei; the latter grabbed the knife from Aiko's corpse to stab Tomohiko in turn.

(Source: Danganronpa Wiki, edited)