Nyay!
Cross between "nya" and "yay"Hey, Nico-chan? Hello!I heard you, today's no good so we'll go next time, okay?Eh? My? My...?Rin! My Nico-cha...a-anyways, get away from her!Nnh...Nico-chan, let's go to the ramen shop you mentioned before!Yay! It's a promise, nya!Geez! Pipe down, you guys!