Dyne

Dyne serves as the leader of the squadron to which Shino Asada (Sinon) belongs in Gun Gale Online.

Despite fighting under his command, Sinon openly admits she cannot stand his personality.

He specializes in close- to mid-range firefights using an assault rifle as his main weapon.

Within the Gun Gale Online community, he is recognized as a capable veteran with solid tournament results.

Dyne is depicted as brash, loud, and not particularly likable on a personal level.

Sinon explicitly says that, personality-wise, she “absolutely cannot grow to like him.”

However, beneath his rough attitude, he does care about his squadmates and can be inspired to act bravely.

He responds strongly to encouragement and criticism from Sinon, showing that he respects her opinion.

Through the connections forged in the Bullet of Bullets tournaments, Dyne eventually becomes friendly enough with Kazuto Kirigaya (Kirito) and his group to fight alongside them in later large-scale battles.

He also appears in the spin-off series Gun Gale Online, where he becomes a fan of Fukaziroh.

Dyne’s primary weapon is an assault rifle, which suits his aggressive, front-line fighting style.

He prefers direct engagement and is willing to take high risks when the situation demands it.

He is strong enough as a player to reach the main Bullet of Bullets tournament three consecutive times.

This consistency marks him as a top-tier competitor within Gun Gale Online, even if he is not among the absolute strongest stars.

Although confident, Dyne is not immune to fear and intimidation, especially when facing overwhelmingly powerful opponents.

In those moments, his courage can waver, but he is capable of regaining his resolve when pushed by comrades like Sinon.

Dyne repeatedly participates in the Bullet of Bullets (BoB), Gun Gale Online’s famous player-versus-player championship.

He manages to qualify for the main tournament three times in a row, demonstrating stable high-level performance.

In the third BoB main event, he is relentlessly hunted down by the mysterious player Pale Rider.

This one-sided pursuit ends in a crushing defeat for Dyne, highlighting the gap between him and the very strongest contestants.

In the fourth BoB, Dyne improves his showing and finishes in eighth place.

Though he does not reach the top, ranking in the top ten still secures his reputation as a serious competitor.

During an operation targeting player-killer squadrons, Dyne is hired as a bodyguard in a dangerous mission.

There, he encounters Behemoth, a terrifying opponent whose power and presence leave him on the verge of losing all will to fight.

Overwhelmed by fear, Dyne is nearly ready to give up and log out of the game to escape the situation.

Sinon harshly scolds him for trying to run away, pushing him to snap out of his panic and face the battle head-on.

Revitalized by Sinon’s words, Dyne launches a reckless, all-or-nothing charge against Behemoth.

He chooses a suicidal attack and self-detonates, dragging his enemy to destruction with him.

This desperate act of courage costs him his in-game life but removes a major threat from the battlefield.

Sinon openly praises Dyne’s guts after the fight, acknowledging the bravery behind his sacrifice.

Because of the connections formed through the BoB tournaments, Dyne gradually builds a relationship with Kirito’s circle.

While he starts as simply another Gun Gale Online competitor, he later becomes one of the many players willing to answer their call for help.

In the Sword Art Online theatrical film, Dyne appears as part of the final battle, joining other veteran players in a climactic showdown.

He stands on the same side as Kirito, Asuna Yuuki, and their allies to confront a large-scale threat.

Later, Dyne also participates in the otherworldly war of the Underworld (the “Inter-world War”) by logging in to support Kirito and company.

This shows both his loyalty to his friends and his willingness to fight in realms beyond his usual Gun Gale Online battlefield.

Dyne appears in the spin-off series Gun Gale Online, which focuses on different main characters but shares the same game setting.

In this story, he develops a particular fondness for the player Fukaziroh, becoming an enthusiastic fan of her wild and explosive play style.

His presence in the spin-off helps flesh out the larger Gun Gale Online community beyond the main Sword Art Online storyline.

He is portrayed consistently as a loud, energetic, and somewhat rough-around-the-edges veteran with surprising heart.

Dyne stands out as a “gritty mid-tier ace”: not a perfect hero, but a persistent and gutsy fighter who keeps showing up when it matters.

His flaws—cowardice when overwhelmed, an off-putting personality—make his moments of bravery feel more earned and human.

Fans often remember him for his suicidal charge against Behemoth and for being the kind of guy who can bounce back after humiliating defeats.

He brings a mix of comic roughness and genuine courage that enriches the Gun Gale Online cast.