User blog comment:Crimson and Darkness/DxD Updates 2~/@comment-27083298-20170701011308/@comment-30924344-20170701014049

Eh nevermind understood them and I've been looking at the liquid in the glass and thinking that seems to be blood and given the quote by Elmen, it sounds like it's Issei's blood in that glass though Issei wouldn't allow that much blood to be taken from him. Unless he was strapped down by the Sitri group and Saju absorbed his blood with Absorption Line xD