Ep. 15: Itsuki, Helena, and Isshiki live as students while Makoto recalls protecting a Mud Doll
Aired on May 29, 2002

15
Three young children, Itsuki, Helena, and Isshiki, live there as students; Isshiki finds a Golem living in the ruins beneath the mansion and wants to protect it. A flashback occurs to when Makoto, Itsuki, and Helena were being raised at the Bähbem manor. Makoto finds a Mud Doll underground and decides to take it back to its mother and father, though Itsuki has his doubts and Helena is against the matter. Armed forces are later summoned to assassinate the Mud Doll, but Makoto creates a sound barrier to shield the firing of the rifles. The Mud Doll slowly deteriorates when it reaches outside the manor, saddening Makoto. In the present, Makoto looks back on that day, wondering if he would have the chance of meeting his parents someday.
Episodes
- Ep. 11 · Ayato faces life support failure and surreal encounters while confronting his destiny as RahXephon instrumentalist.
- Ep. 12 · Quon vanishes from the hospital while Ayato confronts a Dolem threatening the RahXephon.
- Ep. 13 · Investigation into Quon's origins and the first human specimen experiment
- Ep. 14 · Corporate takeover of Quon and Ayato's discovery of his Mulian heritage
- Ep. 15 · Itsuki, Helena, and Isshiki live as students while Makoto recalls protecting a Mud Doll
- Ep. 16 · Ayato considers returning to Tokyo Jupiter while dealing with hidden truths about his Mulian identity.
- Ep. 17 · Elvy pursues Ayato and Quon while the RahXephon faces Dolem threats in Tokyo Jupiter.
- Ep. 18 · Ayato and Hiroko flee Tokyo Jupiter after RahXephon battles Dolem Falsetto
- Ep. 19 · Ayato flees Tokyo Jupiter while facing trauma from Vibrato and Futagami's pursuit