Strongest in History

Strongest in History is found on Shinjuku Island in Sea 1 and represents one of the most HP-dense challenges the first sea has to offer. Spawned via a Malevolent Key, this boss gates itself behind the cost and availability of that summon item — which immediately signals it is not intended as a casual farm. Every attempt is a deliberate commitment.

At 150 million HP, Strongest in History surpasses Soul Reaper by a significant margin and is arguably the toughest standard Sea 1 boss encounter available. You will want a fully refined damage build — whether through a powerful fruit or a high-stat weapon — paired with Haki armor to absorb the punishment this boss dishes out over a lengthy fight. Groups clear it faster and more safely than solos, particularly when one player can maintain distance and draw aggro.

The drop pool rewards persistence without being overwhelmingly broad. Awakened Cursed Finger leads at 15%, offering a meaningful incentive for repeat farming. Vessel Ring follows at 6%, and Malevolent Soul at 2% makes for a useful mid-table drop. The Divine Wheel Accessory is the headline gear reward at 1.25%, a respectable piece for this stage of progression. Disgraced One Title sits at 1%, while the ultra-rare Cursed Flesh closes out the table at 0.65%.

If the Divine Wheel Accessory is your target, plan for an extended grind — at 1.25%, you should expect to burn multiple Malevolent Keys before it falls.