Psychologically speaking, Kakashi Hatake doesn't want to pay attention to Suga Yunobu.
She is cunning, unmotivated, and has a dry figure, which does not conform to Jiraiya-sama's aesthetic view of women in "Intimate Paradise" at all. In addition, coupled with the uncomfortable blood inheritance limit-the girl named Soga Yunobu has nothing to like at all.
If there is any special meaning - Kakashi looked at the expressionless girl in front of him - Soga Yunobu was Hatake Kakashi's last mission in the ANBU stage. However, he finally got rid of the ANBU, but he did not get rid of the girl.