我是天蓬元帅呐

The nickname 'Wo shi Tianpeng Yuanshuai Na' refers to oneself as Marshal Tiangang ('Marshal of the Heavenly Pavilion'), a reference to traditional Chinese culture. This character was a guardian god who later was demoted and became Zhu Bajie in the famous novel 'Journey to the West.' It shows self-deprecation while drawing on classic literary imagery, implying a comedic or slightly humble nature with knowledge of Chinese folklore.