in Not Yet's b-side song Hug Tomo, we can hear Haruna's voice in the song (in the conversation part)..
from what i heard :
Yuko : atashi no koto suki?
Haruna : LOL..Suki da yo..
can't understand the rest someone can help?
Hmm Yep!! that Not Yet 'Naminori Kakigoori' we can hear kojiyuu After 2:55
http://www.youtube.com/watch?v=ydTv38wzvO8&feature=player_embedded#at=235 And:
Yuko said..Do you love me?
Kojiharu: 'Yes!! i love you..' .
That all translate but not me From: kojiyuu.tumblr
Yuko: Do you like me?
Haruna: Huh? *giggle* uh, yes
Yuko: You’re laughing. You, liar!
Haruna: No, I’m not because I like you, actually!
Yuko: You like me, don’t you?
Haruna: Oh
Yuko: I know that
Haruna: You, liar!