Fujio Suzuki (Shin Getter Robo vs. Neo Getter Robo, 009-1, New Getter Robo) and Shingo Ishikawa (Tetsujin 28: Morning Moon of Midday) are designing the characters.
Most of the staff are returning for the second season, with the addition of Shingo Ishikawa and Masanori Nishiyama.
Netflix premiered the first anime season in June 2018 inside Japan, and it ran for 26 episodes ending in December 2018.
Toshiki Hirano (Rayearth, Dangaioh, Magic Kaito: Kid the Phantom Thief) is directing the the second season at TMS Entertainment (Lupin III, ReLIFE).