Ep. 4: Wakaba explores diverse Kemurikusa varieties before the group travels to Sky Bridge
Aired on January 30, 2019

4
Wakaba demonstrates a strong fascination with Kemurikusa, discovering that numerous varieties exist throughout the world. He notes that the specific specimen he received from Ritsu is just one of many types. Following this realization, the group proceeds toward the Sky Bridge.
Episodes
- Ep. 1 · Rin and Rina search for water in a red fog-covered world while Ritsu waits far away.
- Ep. 2 · The second installment of the anime series
- Ep. 3 · Wakaba's curiosity drives the party to explain their surroundings while searching for water
- Ep. 4 · Wakaba explores diverse Kemurikusa varieties before the group travels to Sky Bridge
- Ep. 5 · The group searches for water, walks on foot, and gives water to Midori
- Ep. 6 · Wakaba wanders alone inside the building while his sisters rest in the train car.
- Ep. 7 · The group arrives on an uncharted island and follows a mysterious root into an unfamiliar world.
- Ep. 8 · The group advances through dense red fog while battling Red Bugs