Hidetsugu only acknowledges Shiba Tatsuya. It can be thought that he is usually quiet during conversations. 
Hidetsugu along with Yotsuba Maya, the Head of the Yotsuba Family and the other six Branch Family Heads convened a meeting to talk about Tatsuya's performance in conducting and finishing the mission given to him about dealing with Zhou Gongjin. Maya decided to postpone the decision about what to do until the New Year's Gathering. 
Hidetsugu was apart of the plan thought up among himself and the other Branch Family Heads to postpone Shiba Miyuki's nomination as the next Yotsuba Family Head.