Board Thread:General Discussion/@comment-5138166-20180117134112/@comment-28362353-20180118225133

No. His origin is unknown, but I think he was most likely made by the Kais of the Demon Realm, since Buu is a Demon. (Yes there are Regular Kais and Demon Realm Kais, the most notable being the wizards that created the Demon Realm. Demigra is one of these wizards, as well as Machikabura)