Taishi responded to Tadazane's request, she supported Yorinaga very well as his older sister, she also tried to become the key connection between Toba in and father and son, Tadazane and Yorinaga.
泰子もそれに応え、長姉として頼長をよく庇護し、鳥羽院と忠実・頼長父子の交流の絆となるよう勤めた。