Saikin Haitta Shiro Madoushi ga Party Crusher de, Ore no Isekai Boukensha Seikatsu ga Houkai no Kiki na Ken ni tsuite

Toma’s first life ended not with a heroic battle, but with the quiet devastation of a "circle crusher"—a manipulative woman who systematically poisoned his social circle and tore apart every relationship he held dear. Cast into a vibrant fantasy world by the very accident that shattered his former existence, he vows to leave that trauma behind. In this new realm of sprawling guilds and untamed wilds, Toma painstakingly rebuilds himself from the ground up. He forges genuine bonds, earns the trust of fellow adventurers, and carves out a stable, rewarding life hunting monsters and exploring ancient ruins. For the first time in years, the future looks bright, and the ghosts of his past seem finally laid to rest. That fragile peace is thrown into jeopardy when a mysterious new girl joins his adventuring party. Charming, capable, and disarmingly warm, she seamlessly integrates into the group—yet her arrival stirs a deep, primal unease in Toma's gut. Subtle shifts in his companions' behavior, whispered tensions that surface out of nowhere, and a pattern of social manipulation that feels hauntingly familiar force him to confront a terrifying possibility. Has another circle crusher somehow crossed worlds to finish what was started, or is he merely projecting old scars onto an innocent newcomer? With his hard-won livelihood and the precious family he has built hanging by a thread, Toma must unravel the newcomer's true nature before history repeats itself—and his second chance at life collapses into the same ruins as his first.