Even though a wall has been built between Kirito and Sugu, he must save Asuna. The next time he challenges the final dungeon he won’t be alone.
Suguha cries out her frustration with herself, and Kirito apologizes to her. Before closing the door on Kirito, Suguha tells him to leave her alone. In Kirito's room, Kirito reflects on his past where he felt he was not truly part of Suguha's family. As he plays computer games, he notices Suguha practicing alone. Upon entering Sword Art Online virtual world, Kirito experiences so many things and made so many friends. He feels there is no difference between the reality and virtual world. Kirito vows to be more open with Suguha because he distant himself from her. He knocks on Suguha's door and tells her that he will be waiting in Arun's northern terrace. Suguha reflects on herself and thinks that she is weak. She puts on her Nerve Gear and heads back in the game.
Kirito's team make a pact
By the gates to the World Tree, Recon surprises Suguha. Suguha asks him how he escaped, and Recon replies that he has poisoned the Salamanders. Recon grabs Leafa's hands and tell her to smile. He tells her that he never leave her side, and he confesses that he loves Leafa. When Recon tries to kiss Leafa, Leafa punches Recon who falls down the stairs. Elsewhere in the city, Leafa (Suguha) asks Kirito to duel her. Suguha sees Kirito's stance is similar to his stance in their kendo match. Suguha strikes first, and Kirito deflects. He chases after Suguha who soars high into the sky. Suguha stands on higher ground before diving towards Kirito. When Kirito sees Suguha dropping her sword, Kirito grabs Suguha. While the two embrace each other, Kirito apologizes to Suguha and states that he does not know what to think of her. Suguha tells Kirito that she will help Kirito get home. At the entrance of the World Tree, Suguha informs that she, Kirito, and Recon will do this. Kirito asks Yui about the guardians, and Yui debriefs him about how the guardians are more dangerous in number. The group put our their arms to form a pact with Yui on top of their hands. With Recon and Suguha doing support spells, Kirito engages the guardians. More guardians spawn and prepare to confront Kirito, and many of them charges at Kirito. After Suguha and Recon heal Kirito, the guardians target the two. When the two have a heart to heart chat, Recon engages the guardians. Recon slices the guardians, and Suguha is preoccupied with healing Kirito. When Suguha gets attack, Recon protects her, and he uses a dark magic attack that self destructs. With Recon gone and Kirito impaled with many swords, Suguha finds all is lost when she gets surrounded by the guardians.
Kirito and Sugu fighting together
Out of nowhere, Alicia and Sakuya's little army appears and takes down the guardians with their massive and simultaneous magic attacks. During the battle, Suguha defends Sakuya; both Kirito and Suguha fight together. Sakuya has her forces cover Kirito and Suguha. When Kirito faces a blockade, Suguha tosses her sword, and Kirito charges through the guardians. He finally reaches the top, and Sakuya has her forces withdraw. Suguha wishes Kirito good luck. At the top, Kirito finds a door, and Yui explains to him that door can only be open by system administers. Then, the guardians arrive, and Kirito remembers the access card. Yui reads the codes and inputs into the door.
- Japanese Name: "Kizuna" (絆)
- Light Novel Chapter:
- Opening Theme: "INNOCENCE" by Aoi Eir
- Ending Theme: "Overfly" Haruna Luna