Ebisugawa Souun is the head of the Ebisugawa family. He is the uncle of the Shimogamo brothers. He has a strained relationship with the Shimogamo family and especially his older brother Souichirou.

Souun was envious of his older brother Souichirou and assisted the Friday Fellows in capturing him. He had been gone since the truth of his betrayal came to light during the Nise-emon election.

He attempted to join the Friday Fellows, but Benten tricked him by making Yasaburou take his spot. That enraged Souun, but he was shot down by Tenmanya before he managed to wreak havoc at the Friday Fellows meeting.

He faked his death and later returned disguised as his oldest son Ebisugawa Kureichirou, plotting to take over the Nise-emon position again.