▶ Ancient hero's soul is usually a key combination material for unsealing the sealed mastery set purchased from 'priest James.' ▶ To be able to develop the ancient hero's soul, you will need the set item containing MU continent's soul as a mix substance for the overall mixture by NPC https://ancient-hero-soul20864.wizzardsblog.com/35013093/the-definitive-guide-to-ancient-hero-soul