User blog comment:Crimson and Darkness/Volume 25 discussion blog/@comment-31654305-20180420030825/@comment-31654305-20180420034212

i refers to this Issei’s 'E×E form doesn’t have a meaning yet" the spoiler last point in this discussion blog

"*E×E world means Evie × Etoulde. (Issei’s E×E form doesn’t have a meaning yet)
 * B214 interject: ExE for Ise = Eternal Erection XD"