User blog comment:B214/Volume 23 discussion blog/@comment-86.143.86.100-20170203180136/@comment-31137559-20170203202047

Well of course. In less than one year, he went from being no match to a fallen angel with two wings to taking down an Heavenly Dragon-class Evil Dragon. So in 30 years, it would be natural for him to make chief god-class opponents his bitches. That is very frightening. Issei in 30 years. I'm 99% sure that he's in the Top 5 Supernatural Beings at that point in time.