C727 I Am Here to Exterminate the Clan

In the Tianwu Continent, a practitioner's oath was extremely effective.

No martial artist dared to rashly take an oath to their heart of martial arts.

This was because once a violation occurred, even if the user did not suffer the thunder and lightning, an unerasable inner demon would be planted in the heart.

When the Sun Heart Demon flared up, it was as if his cultivation had gone berserk