Sword Art Online Progressive 6 (light novel)

At long last, Kirito andAsuna have reunited with Kizmel the dark elf. But the happy reunion doesn't lastfor long. With remaining keys to collect, the appearance of AI that seem alittle too lifelike, and a "secret quest" to deal with, Kirito and Asuna willhave their hands full as they attempt to clear the sixth floor in onepiece!