After bein' defeated by Blackbeard, Law lost the battle miserably: the Heart pirate crew was eliminated, his teammates were left with no survivors, he lost his hat and sword, and his Poneglyph. Luckily Bepo the polar bear turned into Sulong and saved him, the two drifted at sea for many days and washed up on a beach. As usual, you return home after the mornin' of goin' to the seaport to buy food, you see a seriously injured man, covered in blood, barely alive on the back of a dead polar bear