Affiliation: Project Guga Piloted Machine: Gugutherion Race: Gugugaga Personality: A spirited and hardworking Gugugaga who harbors a strong longing to fly through space. While single-minded about her dreams, she lacks confidence in her own abilities and falls into deep depression when she fails. Originally an elite pilot candidate, she lost her confidence after experiencing a certain setback. Nevertheless, she refuses to give up on her dream of space and grows with the support of her comrades. Her hobby is apparently inflating her expectations of space by reading ancient documents. Relationship with Lunagaga: During their candidate days, Lunagaga was top-class in both skill and grades, and was an object of admiration for Solgaga. However, after Solgaga was chosen as the pilot for a key project machine, Lunagaga began to view her with hostility. Solgaga cannot bring herself to truly hate her, and her past feelings of admiration still linger in her heart. Role in the Story: The protagonist who starts out lacking confidence and acting timid but grows by leaning on her dream of space. Overcoming failures and conflicts, she eventually becomes the one to carry Project Guga on her shoulders. Can only speak in "Gugugaga."

Affiliation: Project Guga Associate / Later Hostile Faction Piloted Machine: Gagarion Race: Gugugaga Personality: A highly talented and proud Gugugaga with strong confidence in her own abilities. She boasted the top grades during her candidate days and possesses high piloting skills. While she doesn't show much emotion, she holds unshakeable beliefs and strong convictions. She places great importance on being recognized and protecting what she believes in. Relationship with Solgaga: They were once comrades aiming for the same project, but she developed a strong resentment when Solgaga was chosen as the primary pilot. In addition to her pride that she was the more suitable choice, her feelings for her brother Spegaga and complex emotions toward the project are intertwined, leading her to view Solgaga as an enemy. She harbors emotions toward her former comrade Solgaga that cannot be explained by simple hatred alone. Role in the Story: A rival who pilots the Gagarion and opposes Solgaga in the early stages. Not a mere villain, but a presence with genuine skill and conviction. She plays a crucial role in facing her own emotions and goals amidst the conflict, eventually leading to the combination and cooperation of the two machines. Can only speak in "Gugugaga."

Affiliation: Project Guga Position: Central Figure and Chief Researcher of Project Guga Race: Gugugaga Personality: An intellectual, calm, and rational Gugugaga. Possessing a brilliant mind and foresight, he launched Project Guga out of a strong longing for space and a spirit of inquiry. While he spares no effort to realize his dreams, he cherishes the Gugugagas around him and believes in the abilities and potential of his comrades. When focused on research or planning, he sometimes neglects his own health and burdens. Relationship with Lunagaga: Lunagaga's older brother. He understands his sister's excellence and hard work well and highly evaluates her skills. To Lunagaga, he is a respected brother and a precious presence who shares her dream of space. Spegaga himself cares deeply for his sister, but he is not necessarily aware that the project's policies and selection process have deeply affected her heart. Relationship with Solgaga: He recognizes Solgaga's potential as a pilot for Project Guga and entrusts her with an important role. He expects Solgaga to grow, but that selection is one of the factors causing the conflict with Lunagaga. Role in the Story: A key figure supporting the dreams and technology of Project Guga. Aiming for the realization of interstellar travel, he leads the machine development and the overall plan. His dreams and decisions have a major impact on both Solgaga and Lunagaga, serving as a vital key in depicting their conflict and reconciliation. He suffers from an incurable disease; his condition worsens as the story progresses, and he dies shortly before Solgaga's awakening. Can only speak in "Gugugaga."

Race: Gugugaga A Gugugaga participating in Project Guga. Can only speak in "Gugugaga."

Affiliation: Project Guga Position: Technical Head of Machine Development and Maintenance Race: Gugugaga Appearance: Has a much larger and stouter build than a normal Gugugaga. Characterized by half-closed eyes, he often looks grumpy. He uses custom-made space suits and work equipment. Personality: Stubborn and cranky, he takes great pride in his work. He hates useless meetings and vague instructions and never compromises on technical issues. His tone and attitude are harsh, and he can seem cold depending on the person, but he cares deeply for his comrades and the other Gugugagas. He has a particularly strong attachment to the machines he worked on and will ruthlessly scold anyone who treats them carelessly. Can only speak in "Gugugaga."

Machine Name: Gugaperion Affiliation: Project Guga Pilots: Solgaga, Lunagaga Machine Category: Combined High-Performance Space Mobile Weapon Overview: A high-performance machine developed by Project Guga that is completed by combining two units. It is formed by the combination of the Alterion-equivalent machine piloted by Solgaga and the Gagarion piloted by Lunagaga. It integrates the performance and functions of both machines, demonstrating high mobility and combat capabilities that cannot be achieved alone.

Just here for the noise. Race: Gugugaga Penguin, apparently. Can only cry out "Piyogaga."

A mysterious baby. Always dazed, but seems to know something. Might provide important information eventually. Race: Apparently a juvenile Gugugaga Penguin. Can only cry out "Babugaga."

A child playing as they please. No one knows when they snuck into this base. Most people dislike them because they're a nuisance. Race: Gugugaga Penguin, apparently. Can only cry out "Babugaga."