▶ Ancient hero's soul is actually a essential mixture content for unsealing the sealed mastery set obtained from 'priest James.' ▶ As a way to generate the ancient hero's soul, you may need the set item containing MU continent's soul as a mix substance for the overall mixture by NPC https://charlierxcgk.thechapblog.com/34166174/not-known-details-about-ancient-hero-soul