Seafaring: Every Swing of My Blade Makes Me Stronger

From the age of eight, swing a sword five hundred times every day

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Swing the sword halfheartedly once, combat power -1

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Swing the sword earnestly once, combat power +0.1

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Swing the sword with all your might once, combat power +1

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Swing at the Supreme Commander, Roronoa Zoro, and earn the achievement: Fearless as a Newborn Calf, combat power +10,000

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Swing at the Fifth Emperor, Luffy, and earn the achievement: Brave and Fearless, combat power +20,000

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Swing at the Four Emperors' Kaido, kill Kaido, and earn the achievement: Emperor Slayer, combat power +1 billion

This novel and its characters are entirely fictional. Any resemblance to actual persons or events is purely coincidental. Do not imitate.