Dandadan Chapter 20

Chapter 20 accelerates the Serpo arc’s incursion into familiar spaces: school hallways and classrooms become battlegrounds when a snake-like creature destroys Momo’s classroom and a crab-headed alien appears to attack. The sequence underscores how the ordinary is being invaded by the bizarre, and how the protagonists’ day-to-day life offers no refuge from escalating extraterrestrial threats. Okarun’s Turbo Granny form is again deployed as a combination of comic relief and genuine defense, but this time the Serpo complicate physical transformations with psychokinetic control.

The chapter intensifies personal peril: Okarun is subdued and humiliated as the Serpo target his reproductive organs, making the threat explicitly bodily and grotesque. Aira’s decisive intervention—awakening latent powers that tie back to Acrobatic Silky—changes the stakes: fighters become protectors, and alliances are tested under pressure. The episode foregrounds how power functions socially; being the ‘chosen one’ is as much about responsibility as it is about strength.

For the wider dandadan manga, Chapter 20 signals a tonal shift toward more invasive external threats and bodily horror, while retaining the series’ signature adolescent drama. The encounter with the Serpo crystallizes the arc’s direction: battles will become more dangerous, strange allies will be needed, and the core trio’s emotional bonds will be critical for survival.