Shoyo Kurosaki, was the son Ichigo and Rangiku Kurosaki. Ichigo was a top volleyball player when he was in his prime and after a couple of years playing in the Professional League, he retired then took over the businesses that his parents had left him after they passed away. Rangiku was a lawyer when Ichigo was in the Professional League and once he retired and took over the businesses she also stepped down to help him out. Rangiku had Shoyo in Ichigo's last year in the professional league so they were 30 years old. Once they had Shoyo they took a break after Ichigo retired then got back to working. They didn't have a lot of time for Shoyo so they either had a family member babysit or brought him with them. That's all I can say for now, hope you enjoy the story.