Six short episodes bundled with the first season's home video releases put Saitama and the heroes around him in low-stakes comedy between the main battles. Genos shadows his master through grocery runs and a department-store outing, still trying to decode the secret of that strength. Speed-o'-Sound Sonic retreats to the mountains to train after his defeat, Bang keeps angling to recruit both Saitama and Genos into his dojo, and a hot-spring trip turns into a murder mystery.