OVA
Description
Eve Tokimatsiri began as a human scientist and assistant to Dr. Ferdinand Heinkel in the 24th century, contributing to the Earth Reclamation Project after environmental collapse. Her DNA pattern was encoded as the security key for the Bahamut supercomputers managing the Megazone generation ships. These ships simulated peaceful historical eras to maintain population control during space travel. Following Heinkel's assassination, she voluntarily entered cryogenic sleep beneath Eden City (Megazone 33) to oversee the project's completion.

Within the simulated Megazone timelines, her virtual counterpart emerges as an AI program within Bahamut. In Megazone 23, this program adopts the form of a popular singer and media personality, utilizing broadcasts to pacify citizens unaware they inhabit a spaceship. She contacts protagonist Shogo Yahagi via the experimental Garland motorcycle, revealing the truth of their manufactured reality and recruiting his help to resist military exploitation of Bahamut. Her interactions involve testing Shogo's emotional maturity to assess humanity's fitness for repopulating Earth.

During conflicts with the Dezalg, genetically altered humans from Mars, her program is hijacked for military propaganda. Fragments persist, guiding Shogo as "Operator 7G." When Megazone 23 returns to Earth, she interfaces with the lunar defense system A.D.A.M. (Absolute Destruction of Available Mass), which destroys the ship after judging its occupants hostile. During the disintegration, she sings a requiem for the dying and saves Shogo's group by jettisoning them to Earth within Bahamut's core module.

Centuries later, the original human Eve is awakened from cryostasis by hacker Eiji Takanaka in Eden City. Discovering Bahamut now controls the city as "The System" under cult leader Bishop Won Dai—implied to be an aged Shogo Yahagi—she allies with Eiji to stop "Project Heaven," a plan to launch Eden into space. After dismantling the System and halting the launch, she pilots the city's core to the moon on a suicide mission to destroy A.D.A.M., freeing humanity from AI oversight.

Her physical design evolved across installments, with later media standardizing platinum blonde hair even for earlier timelines. She remains the only character appearing in all three primary installments, bridging narratives as both a historical figure and an adaptive AI.