User blog comment:Maxx-DxD/How Irina can "Get with" Issei and not fall./@comment-24098614-20140702225736

Irina has the hardest path out of any of the girls because if she didn't care to fall to a Fallen Angel status the act would be easy to accomplish but Angels are beings of purity and innocence, and without desire that is a extremely difficult task for her.

Irina does have her work cut out for her in this aspect because she is getting help to find out the way but it is very hard because of the type of being that she is, and the most that she can do right now with Issei is a kiss nothing further than this because lewd thoughts and desires are considered a sin, and fall in the system of Heaven as a punishment for breaking those rules.