最弱無敗の神装機竜
最弱無敗の神装機竜《バハムート》 (さいじゃくむはいのバハムート)
A light novel series by Meigetsu Chisato, illustrated by Kasuga Ayumu. The manga adaptation is written by Watanabe Itsuki and illustrated by Tadaura Fumi.
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