It has been anounced that Nakamaru has genes that may be better than Kazuki's and all the school goes crazy making him like a king.  But all he wants is Yuuna.  Kazuki wanders around thinking that it'd be better if he just gave up trying to be a live person.  He's met on a bridge by his dorm's caretaker who tells him that, no matter what, he's still Kazuki.  Yuuna finds them and then Rin and Kuriko show up telling them that they have gone against their family wishes to get Nakamaru's genes.  It's later revealed that Nakamaru isn't anything special after all.