Ep. 20: Memories of the Past Under the Rainbow Over Southern Cross Island
Aired on February 20, 2011

A rainbow appears in the sky above Southern Cross Island. During this event, Ryosuke stops to recall his past experiences with Head and Sora. The narrative focuses on these specific recollections triggered by the visible rainbow. No other events or characters are mentioned in the source material. The scene centers entirely on Ryosuke's reflection while observing the weather phenomenon over the specified location. The connection between the rainbow and the memory of Head and Sora is the sole subject of the description provided.
Episodes
- Ep. 16 · Mizuno Returns Home to Find Marino Missing After Abandoning Escape Plans
- Ep. 17 · Takuto and friends encounter Madoka Kei and Kou Atari at the beach
- Ep. 18 · Takuto discovers a childhood photo of Kate while staying at Sugata's house.
- Ep. 19 · The trio celebrates Wako's birthday at a karaoke parlor where a sudden change occurs.
- Ep. 20 · Memories of the Past Under the Rainbow Over Southern Cross Island
- Ep. 21 · Kiraboshi Order of Cross advances Cybodies beyond 3rd Phase with new device
- Ep. 22 · Night Flight performs a tragic play titled On the Eve of the Legend
- Ep. 23 · Sugata Challenges Takuto to a Match Involving Wako
- Ep. 24 · Kate reveals her reasons for joining the Kiraboshi Order of Cross to Sugata