: The series continues to subtly explore the "android-based discrimination" present in their society. By forcing the androids into service roles to pay for their "hobby" of climbing Babel, the narrative highlights the social stratification between humans and the machines built to serve them. Production and Music
While Cobalt, Chrom, and Neon navigate the mundane tasks of park service, Kei takes the lead in a performance aimed at entertaining the children. The episode highlights Kei's determination to succeed, not for the glory of Babel, but for the genuine smiles of the children he interacts with. Technoroid: Overmind Episode 4
Episode 4 maintains the high-energy musical standard of the series, featuring the opening theme and the ending theme “Invisible -one heart-” , both performed by the cast's in-universe groups. The episode's direction by Imu Gahi emphasizes vibrant colors and expressive character animation, particularly during the amusement park sequences. : The series continues to subtly explore the
KNoCC is at a standstill after failing to clear their third stage at Babel. Between mounting stage participation fees and the high cost of mechanical repairs, their bank balance has hit rock bottom. To make ends meet and keep their electricity running, the group takes a part-time job at a local amusement park. The episode highlights Kei's determination to succeed, not
: The episode illustrates the literal cost of the androids' ambitions. Their reliance on electricity and parts mirrors the human need for food and shelter, grounding the sci-fi setting in relatable financial anxiety.