Kiri Marialate, a New Zealander, enters the military academy at 18. Standing 165 cm tall with measurements of 89-54-85, she relies on martial arts expertise as her primary combat skill but harbors a deep aversion to insects. Her drive to enlist fuels a desire to become stronger and protect the vulnerable. Among fellow cadets, she exhibits a notably steady demeanor and strong sense of humor. During training, Kiri proves reliable in field exercises. She initially burns with jealousy when Suzanna Bluestein secures a leadership position over her, though this later curdles into guilt. Her operational role involves investigating ghoul incursions across various historical periods in Japan. One mission during the 1936 coup attempt reveals Misaki Kureha's involvement in causing the temporal disturbances linked to the ghoul appearances. A pivotal moment occurs when Kiri witnesses Misaki's attempts to alter past events to prevent their friends' deaths. During a critical mission to sever Jean-Luc LeBlanc's connection to the control systems, Kiri throws herself into the path of a ghoul's lethal blast to shield others. This sacrifice claims her life amidst a swarm of ghouls boiling from multiple Inflation Holes. Following her death, Lyar Von Ertiana visits Kiri's brother to deliver the news, confirming Kiri has a brother. This visit forms part of Lyar's journey to notify the families of deceased personnel.