User blog comment:Crimson and Darkness/Volume 25 discussion blog/@comment-92.228.150.7-20180331144820/@comment-95.210.189.106-20180404194745

Both CXC and BXB, in the Shin HighSchool DXD will be have a increase of power, thanks the effect of DXD( trougth ophis power) and the amrita, thath Issei drink.. (This is a theory, not a spoiler).