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Actually, the main reason why he asked this question, which might delve into Milton Cheney's secrets, was because his lifespan was running short.
He had been stuck at the early stage of the Nascent Soul for thousands of years.
If he could break through to the middle stage of the Nascent Soul, he could extend his life by a thousand years, so naturally, he couldn't be indifferent.
Milton Cheney also thought of these reasons at this moment.
So after he finished speaking, he continued, explaining in detail the method he used to break through the bottleneck with the help of the Spiritual Vein's eye.
If what Milton Cheney had said before was of no help to the Blazing Sun True Monarch and his companion,
then what he was saying now was entirely precious experience, and even the most precious breakthrough experience in the Cultivation Realm.
This was extremely valuable experience.