Fujiwara Hidetsugu

Fujiwara Hidetsugu was a successful businessman and also served as chairman of the Fujiwara Gakuen educational corporation.
He falls ill and has to stay in the hospital, so he leaves Haruki in charge of cleaning up the school-related matters.
During his active career, he was a cold-hearted man who didn't care about his family at all.
Fujiwara Academy was originally Hidetsugu's wife's school, and he took over when she died.

"There are still some who have not graduated. You must help them graduate. That's all."