The Nāfuel would be the followers of Virūpākṣa (Pāli: Virūpakkha), one of many Four Heavenly Kings who guards the western course. They act as guards on Mount Sumeru, defending the dēvas of Trāyastriṃśa from assaults because of the asuras. In Thailand and Java, the nāga is often a wealthy underworld https://128.199.208.170/