16.8.5

16.8.5 is a story written by Kawahara Reki that was published on one of the Story Clear Files that are specially made for the Dengeki Fighting Fair in 2014. Each author has to write their own story with evolution as the theme and their work is published on the back of some clear files that have an illustration drawn by the original illustrator for the series on the front. The SAO version of this file is available as of August 2014. To get this publication, customers have to visit one of the bookstores that have joined the activity and follow the way set by each individual bookstore.

Summary
One night, when Kirito and Asuna were going to bed, Asuna noticed that Kirito did not brush his teeth before bed. Although Kirito said that there was no need to brush his teeth in Aincrad and even wondered if it was possible to get a tooth brush in the game, he quickly promised to brush his teeth three times a day after Asuna warned him that she would not kiss anyone who does not brush his teeth. While brushing his teeth, Kirito noticed that his avatar did not have the wisdom tooth that his real body had. Asuna remarked that she did not have any wisdom teeth in the real world, thus she was more evolved than him. After shouting that he was just a primitive barbarian, Kirito sealed Asuna's mouth with his own.