User blog comment:DeathGodPrayer/Talk About What You Want!/@comment-24098614-20140205110547/@comment-1359322-20140205111427

Michael was never interested in increasing the combat forces in the Heavens, they have Sacred Beast and the Brave Saints for that already. The ones spouting that Issei's child will increase the Heavens combat force is Xenovia.

Michael is serious in helping Irina is her quest because he wants his fellow Angels to be able to give birth to Angel/Devil hybrid without concern, cause now that the Three Factions are at peace, it won't be long before more Angels and Devils starts falling in love with each other.