Railgun Online, Book 5. Alicization Running
Mikoto, Sinon and Kirito have been living in the Underworld for 2 years now. Both Kirito and Mikoto, along with Eugeo, have become Elite Sword Masters each with their own Valet. Kirito has obtained his sword from the Gigas Cedar, the Night Sky Sword, while Mikoto has obtained the River Spirit Sword and dual wields it...