User blog comment:Stbk22/Possible power up/Techniques 2 for New Arc/@comment-24.113.252.213-20160805044822/@comment-1359322-20160805060616

I don't think Ise or Vali needs any power-up at the moment. I believe this is the time for other characters to shine. Just look at the past few volumes, Rias, Akeno, Koneko & Yuuto were barely the focus.


 * 1) V17 - Rose
 * 2) V18 - Irina
 * 3) V19 - Xenovia
 * 4) V20 - Asia (Rias' dragonar only has some brief mentioning >_>)
 * 5) V21 - Vali

It's 5 volumes of having the 4 starting characters be like side characters.