User blog comment:B214/Volume 17 spoilers./@comment-24098614-20140318165611/@comment-24098614-20140318171354

I can tell you this in a funny way if he needs a Oppai power boost he now has a third choice because among the girls she is the third biggest in bust only Rias and Akeno are bigger than her. I can tell you this Issei is literally grinning himself to death right now because of this because you know his love towards Oppai, and he has scored a major hottie in the process. I also can't wait for Irina's development in the next story because there is a certain promise that was made, and I am intrigued in what that the promise brings.