The «Guilty Thorn» (ギルティソーン, Giruti Sōn?) was a player-made spear created by Grimlock in Sword Art Online.


The Guilty Thorn was a short spear, made entirely of a single black metal.[1] The entire blade was about a metre in length, with an approximately thirty centimetre-long grip, a long handle, and a sharp fifteen centimetre point at the end.[1] The main feature of the spear was the rows of short, sharp barbs that ran along the entire length of the handle[1], making it difficult to remove the weapon from its target without a high Strength stat and mental strength.[1]

In the anime, the spear was dark red with silver edges and a small piece of tattered red fabric tied to a hole at the end of the grip.[2]


Aincrad ArcEdit

A Murder Case in the AreaEdit

In 2024, Caynz and Yolko requested Grimlock to create some piercing weapons with damage over time effects for their plan to determine Griselda's murderer. Thus, on April 19, Grimlock created three such weapons, including the Guilty Thorn.

On April 22, at 18:27, Caynz stabbed himself with the Guilty Thorn outside the town of Marten on the 57th Floor, then teleported into a church within the town via a Corridor Crystal and waited for the durability of his armour to decrease sufficiently, before hanging himself from the window of the second floor. The moment his armour was about to break, he used a Teleport Crystal to disappear, making it seem he had been killed within the Area.

Later that day, the spear was taken by Asuna and Kirito to be appraised by Agil, who determined the weapon's name and maker. Later that night, the Guilty Thorn was taken from Kirito by Schmitt when the former arrived in Lindarth. The next day, on April 23, after Yolko faked her own death within the Area, an unsettled Schmitt returned the short spear to Kirito.



SAO Weapons Anneal Blade - Dark Repulser - Ebon Dagger - Elucidator - Guilty Thorn - Karakurenai - Lambent Light - Liberator - Mate Chopper - Stout Brand - Sword Breaker - Throwing Pick - Tyrant Dragon - Wind Fleuret
Argyro's Sheet - Blackwyrm Coat - Coat of Midnight - Cor - Crystal Bottle of Kales'Oh - Crystallite Ingot - Crystals - Divine Stone of Returning Soul - Dusk Lizard Hide - Eternal Storage Trinket - Hand Mirror - Mighty Strap of Leather - Mirage Sphere - Pneuma Flower - Potions - Ragout Rabbit's Meat - Ring of Agility - Ring of Angel's Whisper - Scavenge Toad Meat - Tremble Shortcake - Vendor's Carpet - Yui's Heart
ALO Black Iron Great Sword - Blue Long Sword - Crest of Yggdrasil - Demonic Sword Gram - Holy Sword Excalibur - Lightning Hammer Mjölnir - Long Sword - Sap of the World Tree - Yrd
GGO Accuracy International L115A3 - Credit - Defense Field - FN Five-Seven - GE M134 Minigun - Kagemitsu G4 - Metamaterial Optical Camouflage Mantle - PGM Ultima Ratio Hecate II - Plasma Grenade - Procyon SL - Satellite Scan Terminal - Starship Metal Estoc - Type 54 "Black Star"
Project Alicization Black Lily Sword - Blue Rose Sword - Conflagrant Flame Bow - Divine Object - Dragon Bone Axe - Fragrant Olive Sword - Frost Scale Whip - Gigas Cedar - Goblin Sword - Heaven Piercing Sword - Night Sky Sword - Silvery Eternity - Time Piercing Sword - Twin Edged Wings

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