Though they had worked together on the same side in the Bunsho Coup, the two had also been archrivals as each was deeply involved in a fight for succession of a shugo daimyo position.
文正の政変で協力した二人であったが、それぞれ守護大名の家督争いに深く関わっていたため、強烈に対立する二人でもあった。