Chrome Shelled Regios (鋼殻のレギオス, Kōkaku no Regiosu) is a Japanese light novel series by Shūsuke Amagi, with illustrations by Miyū. A short story light novel series was serialized in Dragon Magazine. A manga adaptation drawn by Miyū is serialized in the shōnen manga magazine Dragon Age Pure. A second manga adaptation drawn by Nodoka Kiyose is serialized in the shōnen manga magazine Monthly Dragon Age. A third manga adaptation drawn by Watari is serialized in Beans Ace magazine.