Ep. 18: Miyagi reveals B-cell infestation causing Yuji's mental decline to Marlene
Aired on February 18, 2000

18
Director Miyagi discloses to Marlene that Yuji's rapid progress stems from a B-cell infestation eroding his mind. This condition threatens to completely destroy his sanity if left unchecked. The narrative focuses on the urgent need to halt this internal decay before Yuji loses his mental stability entirely. The revelation shifts the perspective on his achievements, highlighting the severe biological cost behind his accelerated development and the critical nature of the threat he faces.
Episodes
- Ep. 14 · Marlene Defends Yuji Before the High Council as Earth's Fate Revealed
- Ep. 15 · Yuji faces intense training and unexpected romantic attention from a fellow Sleeper.
- Ep. 16 · Yuji witnesses Tony's power and vows to surpass him despite underlying concerns.
- Ep. 17 · Marlene observes Yuji's increasingly strange behavior and his obsession with destroying the Blue.
- Ep. 18 · Miyagi reveals B-cell infestation causing Yuji's mental decline to Marlene
- Ep. 19 · Sleeper Brigades attack Blue while Marlene joins Second Earth mutiny against High Council
- Ep. 20 · Marlene confronts Yuji as Blue forces overwhelm Second Earth in a desperate five-to-one counterattack.
- Ep. 21 · Yuji returns to Second Earth while Tony infiltrates the High Council
- Ep. 22 · Yuji and Marlene infiltrate the Blue-infested Medical Station to confront Tony and rescue civilians.