Sword Art Online: Alicization
Three friends decide to venture to the fabled cave in the End Mountains. Both Kirito and Alice alleviate Eugeo's fear that they might be violating the Taboo Index, the laws of their world, and soon enough, it's time for them to set off.
Kirito wakes up to find himself inside a fantasy game that resembles a mysterious world. His memory is fuzzy and he attempts to log out, but is unable to return to the real world.
Kirito makes up his mind to journey to the center of the Human Empire in the Underworld. Since he'll need Eugeo's help to get there, Kirito is determined to help Eugeo knock down the Gigas Cedar so that he can be free from his Calling.
Kirito and Eugeo realize Selka has gone to the End Mountains alone, and decide to chase after her. As they enter the cave, they encounter goblins — presumably from the Dark Territory — and must engage in a battle.
Carrying the hopes of Cardinal, Eugeo, and Alice in his heart, Kirito gets on his feet yet again. To defeat the most powerful entity, the Administrator, Kirito wills himself to visualize the Black Swordsman, the top player who cleared SAO.