User blog comment:B214/High School DxD EX/@comment-16281343-20150727030248

No idea what the readings are.

【イクス・グレモリー】Ikusu Guremori
 * Rias and Issei's son.
 * Has the nickname/title of「真紅剣の神滅龍子」
 * Strongest swordsman of the Gremory clan.
 * Swordsmaster: Kiba
 * Dragon teacher: Vali
 * Equipped with a red gauntlet

【漸・クァルタ】 Zen? Kuaruta


 * Xenovia and Issei's son.
 * Uses a sword similar to Durandal

【姫島 紅】 Himejima Kurenai? Kou?
 * Akeno and Issei's son.
 * Uses lightning