The Nāfuel are definitely the followers of Virūpākṣa (Pāli: Virūpakkha), one of the Four Heavenly Kings who guards the western course. They work as guards upon Mount Sumeru, guarding the dēvas of Trāyastriṃśa from assaults because of the asuras. Inspite of its fall, the legacy from the Naga Empire endures https://128.199.208.170/