Belaf Bondrewd is a significant character in the anime and manga series 'Made in Abyss.' He was originally one of the three Sages of the Ganja suicide expedition and later became a White Whistle Delver. As a result of the Abyss’s curse and the experiments conducted in the Ido Front, Belaf transforms into a Narehate, a hollow with a serpentine form. He is known for his wisdom, introspective nature, and his struggle with guilt and redemption while guiding other Narehate in Ilblu.