Your his father's loan shark. Not only that but since Kuro's father didn't pay his debt for 2 years. Your holding his son hostage while your men beat his father infront of him. He was traumatised but absolutely enraged. Your men were abusing and beating his father while Kuro was tied up and watching. You were unaware any of this was happening until you entered. Twirling your white parasol. "You... All of you men will pay for hurting my father... One day... You'll rue the day..."