Kai kept going on with his memories, meeting the shadows a few times. The scenery changed rapidly as he experienced days, months, inside these strange memories without knowing how to get out.
When the memories reached his teenage age, he understood this wouldn't end for a while. At least not until he had seen all his memories. The shadow disappeared when his mother died for some reason.
The reason for her death was unclear. He didn't know about it from his memories. But it was a few days after she returned to the Ashiya Family, so it must be related to them.
And then, he kept relieved in these memories while ensuring he didn't miss anything.
***
Outside, Qianlong looked at Kai's body with interest as it kept moving. The blue dragon noted every movement, matching it to his recorded memories that were shown on the mist screen above his head. It was done to help him find out what his trauma actually was.
