Repel the enemy!

The Upanishad inheritance shot out of Shi Yan's Sea of Consciousness, slowly floating towards Ka Tuo. Ka Tuo's eyes were so hot, yet he was a little bit hesitant as well. Eventually, he released his soul altar.

His soul altar covered the Upanishad.

Shi Yan's negative energy covering the inheritance vanished immediately right when the Upanishad merged into the power Upanishad tier of Ka Tuo's soul altar, becoming part of his soul altar.

Chaotic energy fluctuations twirled around Ka Tuo. His body shook vehemently while he was sensing the Upanishad, adding it into his soul altar and making it his unique Seal of Upanishad.

Shi Yan let out light laughter. The way he looked at Ka Tuo didn't have any evil intention. 

When adding the power Upanishad, the warrior would need to release his soul altar and condense his soul, spirit, and thought into one. He shouldn't let any external force disturb him during the whole process.