Baekssisega Sihanbu Gongja

A member of one of Zhongyuan's seven major families, Baek Yigang suffers from a condition that prevents him from cultivating internal energy and shortens his life. Living in seclusion, he is attacked by masked individuals, during which he loses a close servant who acted as a sister to him. Pursued, he flees through an underground passage and, facing a dead end, chooses to fight despite his limitations, taking up a rusted sword embedded in the ground.