User blog comment:B214/General Discussion/@comment-94.9.222.41-20161220022535/@comment-24.139.14.140-20161223201445

Its vali who got yellow eye. Look vol 21 cover. http://highschooldxd.wikia.com/wiki/Light_Novel_Volume_21

Albion got blue eye : http://highschooldxd.wikia.com/wiki/Albion/image_gallery.