User blog comment:B214/Season 3 confirmed!!!!!!/@comment-173.28.183.39-20150310003237/@comment-79.203.25.36-20150310172256

I don't mind Asia, but in intimate moments with other girls she tends to get annoying. The best example is this:

"By the way, Koneko-chan! This kind of daring display used to be only between the two of us, so now it's okay to be seen by others!?

Or was it because I am leaving on the school trip so you are acting like Akeno-san!?

"E-even Koneko... But Ise is clearly mine... He is my most adored Ise... You all are going too far!"

This was getting incomprehensible. In front of me, Buchou was trembling, her face pouting tearfully! Onee-sama! That expression is too cute!

Slam.

With a sound, the door opened to reveal Asia.

Seeing the situation, she immediately began to cry out.

"How! How can this be... Not only Rias onee-sama, but even Akeno-san and Koneko-chan too! Ooh ooh ooh, leaving out just me...? Unacceptable! I have to join in too! Hey—!"

Asia jumped on the bed! Grabbing my leg, she hugged tightly with the determination of never letting go!

"I won't let go of Ise-san! We have to sleep together tonight!"

It was becoming a most incredible situation! Akeno-san, Koneko-chan and even Asia were tightly hugging me... This, did it count as happiness? But something seemed to be off? I was very happy, and completely in over my head, but why was everyone fighting with one another!?" (Vol.9, Life 0)

Rias, Akeno and Koneko won't be able to see Issei for several days so that is their way of bearing with it, yet Asia who will be with him all the time interupts them and clings to him. That's neither pure nor innocent, it's just plain insensitive, immature, egoistic and annoying. Without scenes like this Asia would be much more popular even though she is useless most of the time.