Why does Ren Jian, who weighs more than 430 kilograms and is known as the "No. 1 fatty boy in China", get fat when drinking cold water?

I occasionally heard that practicing yoga can help you lose weight, but what happened to Fatty in the process of practicing yoga?

How did the follower chicken monster obtained by chance become the "silver" chicken with the highest combat power in the demon world?

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Chapter completed!