Sword art online progressive

"It's been just two months since Kirito and Asuna were trapped in the game of death that is "Sword Art Online," and they continue their struggle at the Vanguard of those trying to clear the game. The fifth floor of Aincrad is a maze of ruins, and the two dare to enjoy hunting for its treasure. Upon returning to the fourth floor, it's time to do some questing on behalf of the elf lord Yofilis--but here begins Asuna's discontent, because now they will have to face her least favorite monster ever..."--Back cover.