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Leon, the King of Vakarase, is currently searching for a bride in order to produce a strong heir. However, no woman match for him—the strongest human alive—can be found anywhere on Earth…
Then one day, the Demon Lord’s army, led by the Three Demon Sisters, conquers the realm. The only one who can stop these demons is Leon, the strongest king of humanity! Conquer the tower ruled by the three sisters and reclaim the land!
For the sake of peace, and to impregnate strong women! Leon dives alone into the dangerous tower…

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