Ep. 5: Kirito travels to the central city while Asuna and Suguha investigate Rath's involvement with Kazuto's hospitalization.
Aired on November 4, 2018

Kirito proceeds toward the central city within the Underworld, whereas Kazuto Kirigaya remains unconscious in a real-world hospital. Following Kikuoka’s directive, Kazuto is transferred to a facility with superior equipment. When Asuna and Suguha attempt to visit, they are denied entry and informed that no visitors are permitted until his recovery. Suspecting that Kazuto is located at Rath, the workplace where they research the Soul Translator, the group divides to uncover more information. Despite their efforts to investigate Rath, they fail to determine Kazuto’s exact location or whereabouts.
Episodes
- Ep. 1 · Kirito and Eugeo chop the Gigas Cedar before Alice arrives with pie and suggests a cave expedition
- Ep. 2 · Kirito wakes in Underworld with amnesia and reunites with amnesiac Eugeo
- Ep. 3 · Kirito resolves to aid Eugeo in felling the Gigas Cedar to reach Centoria.
- Ep. 4 · Kirito and Eugeo defeat goblins and depart for Central Cathedral
- Ep. 5 · Kirito travels to the central city while Asuna and Suguha investigate Rath's involvement with Kazuto's hospitalization.
- Ep. 6 · The narrative centers on the Project Alicization initiative
- Ep. 7 · Swordcraft Academy
- Ep. 8 · The swordsman's pride
- Ep. 9 · The duties and obligations expected of a nobleman are explored in this narrative segment.