User blog comment:TheBlueSlug/Who should issei end up with?/@comment-174.119.241.202-20131112181547/@comment-79.1.173.223-20131125204207

Venelana just explained that Issei, even if marry Rias, will have his harem, a devil must have just one wife only if become a Maou (Venelana make as example Sirzechs and Grayfia), but Issei doesn't want to become a Maou.