Kou Hakuyuu/History and Plot

==Light Novels==
Kou Kurou has been training and preparing his son, Hakuyuu, to become Li Kouyuu's assistant even since he was born. This is because he wishes for Kouyuu to become the Head of the Kou Clan and believes his son will be able to help him.
===Volume 6===
Kou Shouka believes that Shuurei will marry for political reasons, not for love. Even though Kou Reishin was the one who brought over the marriage proposals, he rejects every single one of the prospects including his own nephew, Hakuyuu. His reason for this is that "even he might meet a girl and run away with her at any given moment".
===Volume 7===
Kouyuu tells Reishin that he has decided not to marry Shuurei as he is happy with the way things are but she can still marry Hakuyuu if she really just wants a political marriage.
==Anime==
===Episode 42===
When Kou Reishin says he doesn't want to give Kou Shuurei away to any of the other Clans, Kou Shouka suggests marrying her off to Hakuyuu since he is a member of the Kou Clan. Reishin refuses to allow it since "even he might meet a girl and run away with her at any given moment".