Ep. 1: Yuuji faces duty while meeting Ai, the NOA's new weapon against the M34 virus.
Aired on October 4, 2001

The M34 virus is spreading uncontrollably, threatening the world with new strains. NOA soldiers serve as the primary defense force against these emerging threats. Yuuji, a member of this unit, struggles to reconcile his sense of duty with his personal place in society. His perspective shifts after a chance encounter with Ai, a shy girl who serves as the agency's latest weapon. She represents humanity's newest hope in the ongoing battle against the virus. This meeting forces Yuuji to reconsider his role and responsibilities within the conflict. The narrative focuses on the tension between his internal conflict and the external danger posed by the virus.
Episodes
- Ep. 1 · Yuuji faces duty while meeting Ai, the NOA's new weapon against the M34 virus.
- Ep. 2 · Yuuji hospitalized while NOA team fights and Ai faces M34 virus horrors
- Ep. 3 · NOA soldiers return to base but face a new M34 strain infection
- Ep. 4 · Yuuji recovers while virus outbreak escalates and he realizes Ai's importance