User blog comment:Piyush Banerjee/Shin DxD 2 discussion/@comment-2208155-20181221114645/@comment-36663391-20181221213416

@ Merkarion I believe that the GR's power should like the Ultra Istinct, so a power that his body awekening only when he is trigger over the limits. Issei have summoned the GR when he is near death so that power should using only in a extremely dangerous situation..