第 1 季 共 11 集
播出时间：2023年1月13日
第 1 集 The Boy from the Canopy
播出时间：2023年1月13日
Kaina lives in a small village, with elderly people who are worried about him, as there is no other village in the Vault of Heaven and they believe they are the last humans in the world.
第 2 集 Princess of the Snow Sea
播出时间：2023年1月20日
Kaina's life was destined to change as soon as he met Liliha, which came as a surprise as the villagers in the Vault of the Sky didn't expect to see another human still alive.
第 3 集 Travelling Down the Orbital Tree
播出时间：2023年1月27日
In order to safely return Liliha to her nation, Kaina goes with her to assist their climb down the spire tree, knowing he will not be able to return to his village again. Their travel goes smoothly, but the Valghians were waiting for Liliha at the base.
第 4 集 Conflict at the Snow Sea
播出时间：2023年2月3日
The Valghians capture Ririha so they can strongarm the Atlandians into surrendering. The Atlandian soldiers engage in the battle to rescue Ririha and Kaina, but aren't successful. Ririha manages to free Kaina while she remains in captivity.
第 5 集 Rescue Mission
播出时间：2023年2月10日
After learning of the King of Atland's decision to not rescue Liliha and instead go to war with Valghia, it's up to Kaina and Yaona to go save Liliha. Without a means to travel the sea, they must figure out an alternative way to get there.
第 6 集 Ririha in a Cage
播出时间：2023年2月17日
Once the Valghian admiral receives Atland's message that they will not surrender, he decides to leave Ririha outside to freeze to death. Luckily, Kaina and Yaona come to her rescue, but now they must figure out a way to escape and return to Atland.
第 7 集 Fortress Nation
播出时间：2023年2月24日
Opting to stay hidden inside a box within the ship, Kaina, Ririha and Yaona find themselves offloaded to the mobile fortress of Valghia. Now, they must somehow come up with a way to return to Atland, but Valghians are hot on their tails.
第 8 集 Lost at Sea
播出时间：2023年3月3日
After saving an innocent girl from being executed, Kaina, Ririha and Yaona are given a small boat to escape. Unfortunately, without any means to navigate the boat accurately, they are unsure if they're heading in the right direction.
第 9 集 Insignia of an Ancient Castle
播出时间：2023年3月10日
Just before the start of the war between Atland and Valghia, Kaina and his friends race to get proof of a great tree that can save everyone, including their enemies.
第 10 集 The Builder
播出时间：2023年3月17日
Valghia have a fearsome weapon, a relic from the Age of the Sage, which they have activated. How will Atland be able to fight back, now cornered?
第 11 集 Scale of Hope
播出时间：2023年3月24日
Drunk on power, the Admiral continues to operate the Builder and is determined to kill the King. Ririha tries to save her father, which results in making herself the Admiral's target. Will Kaina make it in time to save Ririha?
