Naruto: Art of the Sword!

Trapped in a virtual world, created by a madman with a god complex, filled with monsters and with only his blade by his side. One blond-haired teen must gather companions to his side in his quest to complete a life-and-death game, all hundred floors of it! Along the way he will experience the journey of a lifetime, among many other things! Iaijutsu!Naruto! Possible Naruto x Harem!