Kuro

Loop 1 to 3 - Tutorial Arc
Motoyasu buys Kuro's egg from the Slave Merchant with the hopes of it being Firo's egg after shaking his pig entourage. c410

Kuro hatches from his egg and receives his name because of the color of his feathers. The name "Black Thunder" was also considered. c411

Kuro and Motoyasu grind all day on a mountain populated with dragons and he grows to level 32. He also starts looking more like a Philorial King as he grows. c412

Kuro and Naofumi party together. Although Kuro does most of the work Naofumi grows to level 15. c413

Kuro returns to Motoyasu when Naofumi leaves to go to Silt Welt. When Motoyasu starts collecting philorial eggs, Kuro becomes the leader of a group of 7 others, however as he was complaining about how he didn't get to pull enough thing and how Motoyasu had too many eggs, he appeared to be dyed in gray and disappeared. Since time was reversed at that point, he was returned to an egg, yet to be hatched. c414

Loop 4 - Silt Welt Arc
c415-455

Loop 5 - Melromarc Arc
c456-574

Heroes
Kitamura Motoyasu Iwatani Naofumi