Prior to going into the governor's office, while checking the list of participants of the third Bullet of Bullets (BoB) tournament, Kirito guessed that Death Gun must have been leveling his character before appearing after the second tournament. He also noticed that there were no players named Death Gun on the participant list, but deduced that he must be participating, as the tournament would be the best stage for him.
At the governor's office, after much persistence, Kirito was able to convince Sinon to tell him the details of the BoB royale. They went to a bar in the governor's office, where Kirito was once again mistaken for a girl by the players in the bar. Taking advantage of this, Kirito asked them to cheer for "her", much to their excitement and Sinon's chagrin.
After Sinon explained all the basics, Kirito stopped Sinon from leaving and asked her whether there were BoB participants whom she did not know about. He found out that, aside from him, there were three other players who had not participated in the former tournaments: Pale Rider, Jūshi X, and Sterben. Kirito deduced that one of these players was Death Gun. In return, Sinon demanded Kirito to explain his motives.
Reluctantly, Kirito revealed that he was acting strange during the preliminaries because he met someone who was his enemy in another game and he believed that the player was one of the three players that Sinon mentioned. Kirito also revealed that he and the said player had tried to kill each other as the player and his group had done an unforgivable thing. Finally, Kirito revealed that he had to resolve the issue with a sword, but had been avoiding responsibility for his actions and could no longer avoid it. Sinon asked whether Kirito was a survivor of Sword Art Online, but soon regretted asking it. Sinon then changed the topic by reminding him that they had to go to the standby area to have enough time to prepare. On their way, Sinon told Kirito that she still expected him to keep his promise, thus she would not forgive him if he let anyone else kill him.
During the tournament, after sniping Shishigane, Sinon moved to a safe place where she checked on the satellite scan. She noticed that the closest players, aside from Lion King Richie, were Dyne and Pale Rider; thus, she decided to target them. Having found a sniping position on the west side of the bridge that Dyne had crossed, she prepared to take action. However, she suddenly heard movement behind her and tried to draw her sidearm, but was quickly countered by Kirito, who had unintentionally snuck up on her.
Kirito asked Sinon not to take any action and to observe Dyne and Pale Rider's battle, which she reluctantly agreed to do. Pale Rider used extremely light equipment and high acrobatics skill to dodge Dyne's bullets and eventually shoot him three times. After Pale Rider had defeated Dyne, he was suddenly shot with a silent bullet. While considering the shooter's position, Sinon remembered that she had not seen Kirito on the map, thus she asked where he had come from. Kirito revealed that he was underwater chasing Pale Rider during the scan, and guessed that he was not detected by the scan because of that. When the two noticed that Pale Rider was hit with a stun bullet, a cloaked man appeared from the shadows of the bridge. Sinon recognized his gun as an Accuracy International L115A3, equipped with a suppressor. As the man prepared to fire with his handgun, Kirito yelled at a confused Sinon to quickly shoot him.
Cordial Chords (2017, OS BD/DVD) - Distant Journey (2019, Alicization BD/DVD Vol.1) - If We Could Walk Together (2020, Alicization WoU BD/DVD Vol.8) - If You Were Here (2019, Alicization BD/DVD Vol.8) - If You Wish It (2020, Alicization WoU BD/DVD Vol.2) - Rainbow Bridge (2014, Extra Edition BD/DVD) - Sugary Days (2015, Season 2 BD/DVD Vol.5) - Sisters' Prayer (2015, Season 2 BD/DVD Vol.9) - The Day After (2013, Season 1 BD/DVD Vol.9) - The Day Before (2012, Season 1 BD/DVD Vol.1)
Girl Meets Gun ~P90 ni tsuite Yoku wakaru Online (PYO)~ (2018, P-90 Airsoft Gun bonus) - Her step, step (2019, ReoNa's Prologue Album) - Minami no Island Online (MIO) (2018, Dengeki Island!) - MZO (2016, Dengeki Splash) - Pitohui, Elsa, and a Fine Day for Handguns (2021, AM.45 Airsoft Gun) - Sugoimizugi Jam (2015, Dengeki Girls Swim Wear Festival) - The Untold Tale of the Vorpal Bunny's Birth ~Otherwise Known as the Worries of Two Gun Nuts~ (2020, Vorpal Bunny Airsoft Gun bonus)
Idle Talk - The Shinobi's Reckless Remarks (2017, Dengeki Bunko Magazine Animate bonus) - The Story of the Matchmaking Bakeneko (2016, Clover's Regret Vol.1 Animate bonus) - The Strange Tale of Makuwa Melons (2016, Clover's Regret Vol.1 Melonbooks bonus)
Melodies Go Beyond the Forgetting Curve... - The Grand Plan for a Summer Festival Performance! - The Grand Plan to Overcoming Picky-Eating! - When Asuna and Yuuki Changed into Swimsuits (2015)
Ichiban Kuji Ordinal Scale
A Brief Instant of Reminiscing Right Below the Concert - From Asuna's Diary on a Certain Day in Late April (2017)
SAO x KYOTO NIPPON FESTIVAL
The Great Barrier of the Old Capital of Kyoto (2019)