After seeing Kaido status, Yuji was filled with both excitement, joy knowing that he will begin to learn new things from his father.
Kaido then ask Yuji to follow him in their house there was a basement that was inside the house and also beneath its Yuji had no idea of such place of secrecy but then Yuji opened the door and asked his son to enter it was a dimension that was created by Kaido's father that Yuji Grandfather.
Yuji was surprised and astonished before he could say anything Kaido said it a dimension that's meant for training, why because the time here is faster 2days here is 2hours in the real world his father explained
Sit down and cross fold your leg Yuji did as he was told your Training begins here said his father although, Yuji new they could train outside, but he had the feeling that his father was in a hurry to train him.