 Initially, it was thought that his stage name was derived from the Ryo Asuka character of the "Devilman" manga series by Go Nagai.Aska later denied this, explaining that his name was derived from "Asuka," the name a female radio DJ in Fukuoka, who was the object of his unrequited love during college.When he thought about his stage name, he used Aska in order to get back at the DJ.