Synopsis

The protagonist is in a dire situation, facing relentless undead beasts and a formidable boss that moves quickly. He's losing HP rapidly and tries to strategize on how to deal damage. He fails to communicate with his uncle and analyzes his past sword techniques, ultimately leading to him unlocking a new skill, "Chaotic God-Slaying Crescent Blade." This new skill boosts his attack power and doesn't take up any of his skill slots.