I Am in the Country of Wano, but I Am Forced to Become the Four Emperors.

Morin accidentally travels through the world of One Piece and activates the check-in system. As long as he reaches a place, he can get special rewards. It started in Wano Country for three years, obtained twelve talismans, won Yamato's heart, and beat his father-in-law Kaido to tears. After that, I checked in at a series of places: All Nations, Dressrosa, Impel Down, Mariejoia... Exciting rewards are unlocked one after another: three great domineering powers, invincible swordsmanship, a thousand blades of the magic knife... Several years later, Mo Lin finally came to his senses when he looked at the three major signboards and the six volleys with respectful faces. "I just want to marry Yamato, but you actually want me to be the fourth emperor?" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.