Velsper (ヴェルスパー, Verusupā), also known as Welsper, is a demon, who is in a doublet, a link of fate established to preserve the balance between Heaven and Hell, with Belldandy. The doublets normally forget each other, but Velsper cursed himself to remain in child form in exchange for remembering his encounter with Belldandy. The curse could only be broken if Belldandy speaks his name. It turned out that his body could not handle his growing power, so he worked to break the curse by stopping time. After installing a virus in Yggdrasil, he ends up having the curse broken, and returns to the demon realm. However, because Velsper hacked into Yggdrasil, he was punished afterwards by being reincarnated into a kitten. He cursed himself again in order to retain his memories from before reincarnation; the consequence of the curse is that he is a female cat. As a cat and penalty-boxed demon she hosts an angel, formerly a tsukaima (demon servant). Hild had implanted it into Belldandy.( during the "Angel Eater" arc as shown in the 20th Anniversary OVA special "Ah! My Goddess: Fighting Wings") Belldandy had turned it to the good but was unable to support two angels. It was temporarily passed onto Keiichi, then to Velsper. Velsper's black fur became white spotted, but returned normal after she named this angel "Die Wespe der Blauen Lanze" (ディー・ヴェスペ・デア・ブラウエン・ランツェ, Dī Vesupe Dea Burauen Rantse) ("The Wasp of the Blue Lance" in German).
