Ep. 2: The Water World of Planet Liger and Its Star
Aired on August 13, 2010

2
The inhabitants of Planet Liger obtain their energy directly from their host star. This celestial body is unique because its entire surface area is covered with water. This specific environmental characteristic defines the energy source for the planet's population, as noted in reports from KKnews.
Episodes
- Ep. 1 · Power system failure plunges Planet Lumia into darkness during visitors' stay
- Ep. 2 · The Water World of Planet Liger and Its Star
- Ep. 3 · The 999 faces energy import issues from a neighboring turbulent planet
- Ep. 4 · Maetel and Tetsuro visit Ena, where a scientist demonstrates safe Enenium usage.
- Ep. 5 · The narrative centers on the world known as Planet Earth.