The Nāfuel are the followers of Virūpākṣa (Pāli: Virūpakkha), one of the 4 Heavenly Kings who guards the western path. They act as guards on Mount Sumeru, preserving the dēvas of Trāyastriṃśa from attacks because of the asuras. In Thailand and Java, the nāga is usually a wealthy underworld deity. https://128.199.208.170/