段干子 / Duan Ganzi
段干子 / Duan Ganzi appears in 《资治通鉴·周纪》83丨诸侯摆烂竟成了经典计中计？ after 魏国’s defeat at 华阳之战. He advises 魏安釐王 to cede Nanyang-area land to 秦国 in exchange for peace.
The episode treats his proposal through 苏代’s hostile reading. Su Dai argues that Duan Ganzi wants to become Qin’s chancellor while Qin wants Wei land, so letting him manage peace negotiations aligns his private ambition with Qin’s territorial appetite. The source also suggests, cautiously, that Duan Ganzi may be a descendant of 段干木, but that genealogy is not used as proof of his motives.
For this wiki branch, Duan Ganzi is the human hinge for 抱薪救火式割地求和. His advice may look like conventional damage control after a defeat, but the episode asks whether peace procedure is being driven by Wei’s interest or by a negotiator whose incentives point elsewhere.