User blog comment:Piyush Banerjee/Shin DxD 2 discussion/@comment-2.247.243.13-20181220200346/@comment-109.152.226.139-20181221023602

The problem with DxD G is the Issei is a human soul in a body packed full of dragon god level power that it is too weak to activate the dormant powers of Great Red and Ophis on it own whitout the Boosted Gear. when he activates DxD G it too much energy for he's human soul to handle at the moment, But Ajuka in vol 12 said souls can adapt to new bodies they just need time. Psuso DxD's limit is allowing is soul to slow adapt to Dragon gods power and fully intergrate with dragon body but i personally think the Amrita is speeding this process up by allowing he soul to absorb 88 mintues of Ophis power at a time rather the 30 seconds at a time. But I could be wrong it just the best I can undersand whats going on with his Dragon body with the information I have.