User blog comment:B214/General Discussion 2/@comment-30048084-20180404170511/@comment-1359322-20180405015707

Probably make them appear in another series. Putting them in now IMO is more harmful than helpful for them.


 * 1) Shin DxD may only cover the Azazel Cup
 * 2) Ishibumi is currently focusing on the girls' relationship progress with Ise. Putting them in now will be a huge mess.
 * 3) For proper character growth and development it's best to introduce them in another series so that we can learn from fresh instead of being toss in out of nowhere.