W XXI wieku została stworzona najbardziej realistyczna gra internetowa (MMORPG) o nazwie "The World" ("świat"). Mnóstwo graczy na całym świecie "zarywa" noce, aby zdobywać kolejne poziomy lub po prostu, by poznać nowych ludzi poprzez "The World". W grze można być każdym - skrytobójcą, członkiem straży królewskiej, wędrownym magiem czy nawet księżniczką. Tsukasa jest jednym z takich graczy, lecz w przeciwieństwie do pozostałych, nie może opuścić wirtualnego świata. Możliwe, że ma to coś wspólnego z tajemniczą Aurą - graczem lub programem, który ma niedozwolone uprawnienia i chce wykorzystać Tsukasę do sobie znanego celu. Razem z Mimiru, Bearu i innymi zaprzyjaźnionymi (?) graczami Tsukasa powoli dochodzi do prawdy, która wcale nie musi być zachwycająca...
Odcinki
1. Odcinek 1
4 kwi 2002 24mTsukasa is trapped in an MMORPG called The World. With his conscious inaccessible, Tsukasa attempts to find his purpose for being in the game.
2. Odcinek 2
11 kwi 2002 24mTsukasa’s inability to log out of the world worries Mimiru. The Crimson Knights, on the other hand, see Tsukasa as a threat.
3. Odcinek 3
18 kwi 2002 24mBT and Sora suspect that Tsukasa is somehow connected to a very important artifact, the Key of the Twilight.
4. Odcinek 4
25 kwi 2002 24mTsukasa's rampaging Guardian monster wreaks havoc in The World, and an edict from Subaru makes him a wanted man.
5. Odcinek 5
2 maj 2002 24mTsukasa finally tames his Guardian monster, but unbeknownst to him, someone is plotting his capture.
6. Odcinek 6
9 maj 2002 24mSubaru carefully observes Tsukasa, gradually getting to know him. Sora mounts a rescue mission.
7. Odcinek 7
16 maj 2002 24mMimiru encounters a novice player and offers her guidance in The World. This new relationship helps Mimiru uncover her own motivation for playing.
8. Odcinek 8
23 maj 2002 24mMimiru extends Tsukasa an invitation to meet; BT and Crim share an interesting encounter.
9. Odcinek 9
30 maj 2002 24m 7.0An elite hacker proves instrumental in the quest for the Key of the Twilight, and Tsukasa gets stuck with a sick Grunty.
10. Odcinek 10
6 cze 2002 24m 7.0Bear's shortcomings as a father may be the root of his concern for Tsukasa. Clues arise as the search for the Key of the Twilight continues.
11. Odcinek 11
13 cze 2002 24m 9.0Mimiru, Bear, and Tsukasa join forces before embarking on a non-fighting quest.
12. Odcinek 12
20 cze 2002 24mTsukasa stumbles upon Aura, an advanced AI, that is being held captive.
13. Odcinek 13
27 cze 2002 24mA way to open the Twilight Eye is discovered, and the group decides to follow the new path unfolding before them.
14. Odcinek 14
4 lip 2002 24mAfter the Eye is opened, a secret area appears, complicating the group's search for the key.
15. Odcinek 15
11 lip 2002 24m 8.0Revisit all the major moments from this groundbreaking anime in a series of vivid flashbacks that may shed new light on past events!
16. Odcinek 16
18 lip 2002 24m 7.0Tsukasa logs back into The World, only to discover that he cannot die. Shocked, he turns to Subaru for answers.
17. Odcinek 17
25 lip 2002 24m 6.0Crim refuses to meet BT outside of the game. Later, Tsukasa mounts a rescue attempt – and secrets are revealed.
18. Odcinek 18
1 sie 2002 24m 8.0Silver Knight disrupts any and all potential rendezvous between Subaru and Tsukasa. Subaru ponders the future of the Crimson Knights.
19. Odcinek 19
8 sie 2002 24m 9.0Subaru drifts aimlessly through The World, reflecting on her past experiences. Her connection with Tsukasa grows even stronger after an unexpected attack.
20. Odcinek 20
15 sie 2002 24m 10.0Aura goes missing, Morganna attacks Tsukasa, and the search for the Key of the Twilight continues.
21. Odcinek 21
23 sie 2002 24m 7.0Tsukasa lingers in a catatonic state, and some immensely powerful monsters make their presence felt in The World.
22. Odcinek 22
29 sie 2002 24m 7.0Bear, Mimiru, and Subaru are attacked by yet another seemingly-unstoppable monster, but Balmung comes to the rescue.
23. Odcinek 23
5 wrz 2002 24m 8.0Tsukasa is too frightened to pass through Helba's gate, and Crim explains Subaru's true life condition.
24. Odcinek 24
12 wrz 2002 24m 8.0Upon arriving in Helba's realm – Net Slum – the group is forced to defend Subaru from an attack by Morganna.
25. Odcinek 25
19 wrz 2002 24m 9.0As the battle intensifies, the group seeks shelter in the Cathedral. Morganna summons Guardians to do her bidding.
26. Odcinek 26
26 wrz 2002 24m 8.0Drawing strength from Subaru, Tsukasa summons the courage to awaken Aura. Outside of The World, players share a true life encounter.