User blog comment:DeathGodPrayer/Talk About What You Want!/@comment-4547267-20131218224218/@comment-16281343-20131219072004

Rias, Asia, Akeno, Koneko. ->   These 4 are unshakable.

Ravel, Xenovia, Irina -> These girls haven't explicitly said that they love Issei unlike the girls mentioned above, so Issei is still in the woods regarding their feelings towards him.

Kunou, Kuroka, Kiyome -> These girls have potential to be included in his harem.