Ep. 24: Kirito dan Yui menghadapi Oberon di puncak Pohon Dunia untuk menyelamatkan Asuna dari kendalinya.

Arriving at the top of the World Tree, Kirito and Yui finally reunite with Asuna. However, they are suddenly hit by high gravity magic, which forces Yui to retreat, and they are confronted by Oberon. As Oberon reveals that his plans to control the human mind are almost complete, he chains Asuna and attempts to molest her in front of Kirito. Falling into despair, Kirito hears the voice of Akihiko, who encourages him to stand up and fight. Using Akihiko's administrative functions, Kirito removes Oberon's powers and challenges him to a fight with no pain absorption, showing him what true pain is, before destroying Oberon. After logging Asuna out to ensure her safety in the real world, Kirito meets with the remnant of Akihiko's memory, who gives him an item called "The Seed" before leaving. (Source: Wikipedia)
Episode
- Ep. 20 · Kirito Mengelabui Jenderal Salamander untuk Melindungi Pertemuan Aliansi Sylph dan Cait Sith
- Ep. 21 · Kirito dan Leafa mencapai ibu kota Alfheim sebelum server shutdown memaksa logout
- Ep. 22 · Kirito dan Leafa menemukan identitas asli mereka dan keluar setelah petualangan berbahaya.
- Ep. 23 · Kazuto dan Leafa menyelesaikan perselisihan keluarga mereka melalui duel simbolis di ALO
- Ep. 24 · Kirito dan Yui menghadapi Oberon di puncak Pohon Dunia untuk menyelamatkan Asuna dari kendalinya.
- Ep. 25 · Kazuto mengampuni Sugou dan bersatu kembali dengan Asuna sebelum merayakan bersama teman-teman serta membebaskan para pemain yang terperangkap.