Well no wonder Nagamasu renounced his position and embraced monkhood all those years back...though I would never have imagined him capable of incest, even with his philandering reputation. But then again this bit is fictional, or speculative even at best. And O-Chacha's offhanded dismissal of his hard-earned wisdom and farsightedness as "cowardice" comes across as especially tragic, given the grisly "sneak-preview" of the aftermath that we got to witness at the beginning of Chap128