User blog comment:B214/Volume 21 info & spoilers/@comment-189.202.40.188-20160617232122/@comment-24.113.252.213-20160622013252

Issei: Red Dragon Emperor of Blazing Truth


 * Issei's name means "Honesty" which can also be taken as "Truth." And he unlocked Ddraig's powerful fire ability, Hence "Blazing Truth."

Vali: White Dragon Emperor of Morning Star


 * He's a decendant of the Original Lucifer, and his new power is a combination of Albion's power and the Lucifer power within Vali.