"These members joined during the early phase of The Strays but were not directly involved in its foundation. This period was characterized by a lack of centralized leadership, leading to a more chaotic but opportunistic growth phase."
- Nguyễn Quang Minh (Auburn): A Vietnamese former classmate of Aldo and Veritas back on Earth, Minh excels in mathematics. He has an easygoing, kind, and peaceful personality but possesses a fragile mind. His appearance is not particularly striking, and unlike Aldo, he actively avoids conflicts after his time as a slave.
- Phạm Tuấn Hải (Fermos): Another Vietnamese former classmate of Aldo and Veritas, Hải specializes in chemistry and physics, though he isn't as proficient in physics as Veritas. He is spontaneous, energetic, and homophobic. Hải plays a crucial role in chemical production, developing formulas and conducting experiments while Aldo finds ways to apply them on an industrial scale. Unlike many others, he views his time in slavery as an eye-opening experience rather than one of pure suffering and misery.
- Nguyễn Phú Kỳ (Helzard): A Vietnamese individual with a rebellious, blunt, and spontaneous nature, yet he is also honest and highly sociable. He struggles with academics but has a strong talent for fine arts and enjoys engaging in risky activities.
- Kinoshita Shinji: A conservative young man from Japan, Shinji was raised with a strong traditional Shintoist background and adheres to a traditional lifestyle. Despite receiving a good education, he is extremely quiet, dull, and solitary—surpassing even Aldo in calmness. He resides in a bamboo forest with a peach tree and joins The Strays only after Zihao invites him.
- Helene Meyer (originally Matthew Bauer): Originally a German male named Matthew Bauer, he excelled in metallurgy and manufacturing. After being summoned and enslaved, he managed to escape with his friends to a free state in Mikhland within just seven days. He later made a living by designing, crafting, and maintaining enzyme production machines for Aldo and Veritas. However, after an attack by an anomaly lich known as the Bone Collector, he was biologically transformed into a female, with partial changes to his brain. Seeking vengeance, he joined The Strays and continued his work as a machinist, mainly assisting Aldo. Eventually, he personally killed the Bone Collector, only to be bewildered when Aldo casually mentioned that he had forgotten to retrieve a gender-reset potion from the lich. Despite this, he ultimately accepted his new identity, changed his pronouns to she/her, and was unbothered by the transformation.