Episode Title:
Underworld.
Episode Description:
Inside an unknown VR environment, Kirito spends his days as a child with his friends Eugeo and Alice. The three get lost in a cave in the outskirts of the Human Territory, ending up at the boundary of the Dark Territory. Alice trips and falls with her hand accidentally touching the Dark Territory. For this violation, she is sentenced to execution by the Integrity Knights. Kirito attempts to stop Alice from being taken away, while Eugeo stands motionless. Soon after, Kirito awakens in the real world with no memory of what happened...
