Discovered in cryogenic sleep within ancient alien ruins on an uninhabited planet, Adam is awakened by the main group. His true name is Alduram Gyet, though Howard nicknames him Adam. Upon awakening, he forms an immediate telepathic connection with Luna, facilitated by their shared latent psychic abilities, enabling communication without spoken language.

Initially fearful and disoriented, Adam gradually integrates into the group. He develops a deep affection for the planet's native Pague creatures, frequently seeking their companionship. His emotional vulnerability surfaces during conflicts, such as when Howard tricks him into taking Menori's violin, leading to Menori harshly scolding him. This causes Adam to retreat in distress, though Menori later reconciles by comforting him and acknowledging her own harshness.

Adam's character arc centers on an internal conflict regarding identity and belonging. He struggles between embracing his alien heritage on the planet and joining the human children's quest to return to their colonies. This dilemma intensifies as the group uncovers more about the planet's history and Adam's connection to its ancient civilization. His bond with Luna remains pivotal, her empathy helping him navigate his dual sense of isolation and purpose.

In the series' conclusion, Adam chooses to remain on the planet. This decision positions him as a symbolic bridge between its native species and humanity, implying a future role in fostering coexistence. A significant moment occurs when Menori gifts him her cherished violin, symbolizing his acceptance and the enduring impact of his relationships with the group.