Oner spent most of the time after the entire battle and after they got the sign meditating. There was alot to think about, plus alot to talk about. They had to talk with a certain person, so they spent the rest of their time on Sugar Rush in contact with said person. In fact, while everyone else jumped on their glider, Oner and Reno rode inside of theirs to the next world. Even after they arrived and began in conversation with Yukio they were still inside of the book. Although during the conversation, the book suddenly opened, and out from the pages arose Oner, floating out of the book and to the ground, the book disappearing once it closed. 

He sighed a little heavily, rubbing his forehead for a moment before he simply listened to the conversation while looking around at the area they were in. Oner didn't really have anything to talk about at the moment, so he stayed silent for now for some odd reason.