He pressured Masahiro ABE, who was the Roju shuza (the head of Roju, senior councilors of the Tokugawa shogunate), with support by the Satsuma domain, which was the family home of Toyoteru's wife Chikyoin (Kohime).
豊熈の妻・智鏡院（候姫）の実家に当たる薩摩藩などの後ろ盾により老中首座であった阿部正弘に働きかけた。