Navigation: I Can Become Stronger by Signing In!

Accidentally travel through the pirate world and activate the check-in system. As long as you reach a certain place, you can get special rewards. From then on, a series of check-in tasks began: Cocosia Village, Impel Down City, Navy Headquarters, Windmill Village, and Wano Country At the same time, you will receive exciting and world-shaking rewards. "Flowing blade like fire, perfect three-color domineering, super-speed regeneration, Ulquiorra, Samsara Eye..." Whitebeard: The moment he appeared, the strongest man in the world no longer belonged to me Kaido: He is the most terrifying creature in the world. Warring States Period: His appearance will subvert everything and no one can stop it This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.