When a conspiracy to to overthrow Tokimune HOJO was detected and brothers of Tokiaki HOJO and Noritoki HOJO were killed in Nigatsu-sodo (February rebellion), Tokisuke became the target of hunting down; and it is said that he was killed by Yoshimune HOJO of Rokuhara Tandai based on the order of Tokimune in 1272.
文永9年（1272年）、北条時宗失脚計画が露見して北条時章・北条教時兄弟が二月騒動で討たれると時輔も追討対象となり、時宗の命を受けた六波羅探題北条義宗によって攻められて戦死したとされる。