Niehime -Sengoku Kanraku Emaki-

Masaitsu is a Daimyo (feudal lord). One day, he accepts a girl sent from his follower, Nagaharu. Her name is Sakuya. He delightedly shags with her every night.... Months later, Masaitsu receives news that Nagaharu secretly plans to rebel against him. However, Masaitsu isn't surprised at all. Yes, he already knows it.... He orders, "Call Sakuya here. I'll ask her...."