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How a Realist Hero Rebuilt the Kingdom: Volume 13

BATTLE AT SEA

Risking her life to save her homeland, Shabon, a princess from the Nine-Headed Dragon Archipelago, joins Souma's side in hopes of stopping an impending war. But with a fleet already en route to the hostile archipelago under his orders, Souma sets out on an infiltration mission before it arrives, and he discovers that the real threat is a massive creature in their waters that defies all common sense!