Synopsis

The protagonist undergoes rigorous training from his older sister, which involves intense physical and mental challenges, including endurance tests and combat practice. The chapter highlights his rapid growth in combat skills, demonstrating his ability to adapt and master not just the Jin family's sword technique, but also their spear technique and applying to his swordsmanship. The chapter ends with the protagonist's sister questioning his ability to have mastered such techniques in so short a period, setting up a potential further examination of his abilities.