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Warning Spoiler Alert: This article/section contains details about future plotlines described in the light novels, not covered in the anime. Do not proceed unless you want to be spoiled.
Personal Information
Display Name[?]
サチ (Sachi)
In-Game Name[?]
VR Played
High School Student
Voiced By (English)
Volume 1, Chapter 14 (Mentioned)
Volume 2 Red-nosed Reindeer (Chronological, actual)

Sachi (サチ, Sachi?) was one of the 10,000 players who were trapped in «Sword Art Online» and a member of the Moonlit Black Cats guild. She is a fairly timid girl who harbored fear of the game and dying, a secret which she later shared with Kirito.


Offline, Sachi, along with all the other members of the Moonlit Black Cats (excluding Kirito), were in a computer club at their school. She also happened to live fairly close to the leader of the guild, Keita.


Sachi was a petite girl with shoulder-length black hair.[3] She wore a light blue tunic with a chestguard, a knee-length short skirt and grayish boots.[4] In battle, her weapon was a two-handed long spear.[3] Although she temporarily tried out wielding a sword and shield to help Tetsuo tank monsters, she eventually had to switch back to using a spear due to her fear of fighting monsters at close range.[3]


Sachi was a shy and cowardly girl who had harbored great fear of the death game and dying. She even admitted that she never intended to leave the Starting City and hated going into battles.[5] After Sachi ran away from the guild and Kirito managed to trace her, he assured her that he would not let her die. Ever since then, Sachi became close to Kirito and one day noticed his real level. Although she wondered why he had been hiding his level, she decided not to tell anyone in the guild about it, believing that one day he would tell them the reason personally. After finding out how strong Kirito was, she could finally sleep soundly by his side, feeling safe by his side and happy that she was significant to him.[5]


Aincrad ArcEdit

Red-nosed ReindeerEdit

Sachi was introduced as a member of the Moonlit Black Cats guild, and openly welcomed Kirito as he became a new member of the guild.

She was mentored by Kirito to switch to sword and shield from her original profession of a lancer, but could not handle it due to the closer range to monsters and her fear of battles. They became very close, to the point of sleeping together in the same room; their relationship described as "two stray cats licking each others' wounds" as they comforted each other. Their relationship was close enough that they had a shared page in each other's inventory (similar, but not quite at the level of married players who had combined inventories). Kirito promised her that she would not die, though unfortunately, he wasn't able to keep his word.

She was killed on June 22, 2023 (at exactly 5:45:13 PM) along with most of her guild when a trap, which locked down the area, made multiple monsters spawn around the trap, and prevented the use of teleportation crystals, was triggered. After her death, Kirito was left in despair and self-loathing, even more so when Keita committed suicide shortly after the death of her and the rest of the guild.

Months later, Kirito received rumors of an item, which could resurrect dead players, that would be dropped by a Christmas event (which was a month away) boss. Even though the odds of that being low, Kirito decided that even less than a 1% chance of it being true was worth the risk and started training relentlessly for the upcoming event, taking many unnecessary risks and sleepless nights leveling in preparation for the Boss Fight for even the smallest chance of reviving Sachi. Having obtained the rare item Divine Stone of Returning Soul after much hardship, to his disbelief and horror, the item had to be used within ten seconds of a player's death, rendering the item useless for his purposes of reviving Sachi, who had died months ago, compounding his grief even further.

SAO E03d

Sachi's last words to Kirito.

A few hours later on Christmas Eve, a time-delayed message left by her opened up in Kirito's inventory. The message told him that she already knew of his higher level, along with telling him not to blame himself for her death, which she had predicted would happen due to her nature. She requested Kirito to survive in the world of SAO, and to find the reason why such a world was built. The song "Rudolph the Red-Nosed Reindeer" was also sung by her and her final goodbyes gave Kirito the strength to live. Just as the message was about to come to an end, Kirito started to weep.

The Day AfterEdit

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See: Sachi/Image Gallery


  • In the light novel, Sachi sang Rudolph the Red-Nosed Reindeer with lyrics in it, while in the anime she just hummed along the melody.
  • Fans have pointed out that Kirito and Asuna's adopted AI daughter, Yui, bears a resemblance to Sachi. This was also pointed out in abec's blog.
  • In the anime, Sachi made a message record crystal and sent it to Kirito through a time-triggered mail to be received on Christmas Eve of 2023 contrary to the light novel, where Sachi left the message record crystal in a shared inventory tab between her and Kirito with the timer-activation mode active. Kirito noticed this item due to the "alarm" the timer gives out.
  • In the light novel, Sachi and Kirito had a shared inventory page separate from their individual inventory, which either one could access at anytime, mainly used to put common items such as potions and crystals for their convenience. The creation of this slot was requested by Sachi under the guise of being able to share potions (even though the guild inventory could be used for this purpose) between them. The real reason why she wanted this slot was to be able to leave a comforting goodbye message to Kirito, in case she died before Christmas.

Her death was one of the driving factors for Kirito's refusal to join another guild, and re-embracing the path of a solo player, until over a year later, when he was comforted by Asuna and joined the Knights of the Blood.

  • In the Blu-ray/DVD package volume 2, the character song CD featured Sachi (Hayami Saori) singing "Memory Heart Message" as the 2nd Character Song for this series. This CD is bundled along with the 3rd Character Song, which is sung by Silica (Rina Hidaka).
  • In a 2005 interview with Kawahara Reki as Kunori Fumio during the third popularity contest, there was a Q&A session with the characters themselves. Sachi was revealed to be Kirito's first love prior to Asuna.[1]
    • In addition to this, in the Web Novel version of the story, Kirito's and Sachi's relationship was depicted as being more intimate, and close. In the Published version however, it's possible that much of the information from that Q&A (including Kirito's love for Sachi) was retconned and no longer canon, which is implied by subtle changes in the text, regarding Kirito's memory of her.
  • In Sword Art Online: Infinity Moment, Kirito's inventory contains items from Sachi (and Asuna) separate from other items. The shared inventory contains a message record crystal that can only be activated in Kirito's room.



Major Characters
Alice Schuberg - Asuna - Eugeo - Kayaba Akihiko - Kikuoka Seijirou - Kirigaya Suguha - Kirito - Klein - Lisbeth - Silica - Sinon - Yui
SAO Players
Aincrad Liberation Force/ALS Joe - Kibaou - Kobatz - Thinker - Yulier
Divine Dragon Alliance/DKB Lind - Schmitt - Shivata - Yamata
Fuumaningun Isuke - Kotaru
Fuurinkazan Dale - Dynamm - Harry One - Issin - Klein - Kunimttz
Golden Apple Caynz - Grimlock - Griselda - Schmitt - Yolko
Knights of the Blood Asuna - Daizen - Godfree - Heathcliff - Kirito - Kuradeel
Laughing Coffin Johnny Black - Kuradeel - PoH - Shinkawa Shouichi
Legend Braves Beowulf - Cu Chulainn - Enkidu - Gilgamesh - Nezha - Orlando
Moonlit Black Cats Ducker - Keita - Kirito - Sachi - Sasamaru - Tetsuo
Titan's Hand Rosalia
Others Agil - Argo - Ashley - Coper - Diavel - Kashiwazaka Hiyori - Lisbeth - Morte - Nishida - Rossa - Sasha - Silica
Beta-Tester Argo - Coper - Diavel - Morte - Kirito
NPC Angel - Kizmel - NPC Orchestra - Pina - Ruru - Tilnel - Yui
Non-Canon Aaaa - Leafa - Philia - Sinon - Strea - Yuuki
ALO Players
Cait Sith Alicia Rue - Silica - Sinon
Gnome Agil - Tecchi
Imp Yuuki
Leprechaun Lisbeth - Talken
Pooka Sasha
Salamander Eugene - fastuosa - Gtacs - Jun - Kagemune - Klein - Mortimer - UxperXJ
Spriggan Kirito - Kuro - Nori
Sylph Erika - Leafa - Recon - Sakuya - Sigurd
Undine Asuna - Chrysheight - Siune - Thinker - Yulier
NPC/Navigation Pixie Angel - Leviathan - Nerakk - NPC Orchestra - Pina - Skuld - Thrym - Thor - Tonkii - Urðr - Verðandi - Yui
Non-specified/ Special case Ashley - Marinca - Saitou Shouichi - Sugou Nobuyuki
GGO Players
Dyne's Squadron Arashi - Dyne - Ginrou - Jin - Miso - Sinon
BoB Participants Blackwood - Colonel Liberty - DA*LU - Dyne - E.J. - Fernil - Garrett - huuka - Jack Reacher - JIGEN - Kakouton - kaeeeede - Kakameposu the II - Keith - Kirito - Lion King Richie - Masaya - Musketeer X - No-No - Pale Rider - Pancho - Raiden - Licoco - Setsugekka - Shishigane - Sinon - Sterben - Stinger - Subtilizer - Ten-Q - Uemaru - Yamikaze - XeXeeD - XYZ
Death Gun Victims Garrett - Pale Rider - Usujio Tarako - XeXeeD
Others Behemoth - Spiegel
Underworld Resident
Human Empire Rulid Village Alice Schuberg - Bercouli - Doyke - Eugeo - Garitta - Gasupht Schuberg - Jink - Kirito - Nigel Balbossa - Orick - Sadina Schuberg - Selka Schuberg - Sister Azariya
Zakkaria Banou Wolde - Egome Zakkalight - Kelgam Zakkalight - Telin Wolde - Telulu Wolde - Toriza Wolde
Centoria Azurika - Cardinal - Quinella - Sadore
Sword Mastery Academy Azurika - Eugeo - Frenica Szeski - Gorgolosso Baltoh - Humbert Zizek - Kirito - Raios Antinous - Ronye Arabel - Sortiliena Serlut - Tieze Shtolienen - Uolo Levanteinn - Zobun
Central Cathedral Cardinal - Charlotte - Chudelkin - Elevating Operator - Fizel - Linel - Quinella
Integrity Knight Alice Schuberg - Bercouli - Dakira - Deusolbert - Eldrie Woolsburg - Eugeo - Fanatio - Fizel - Giro - Hobren - Jeis - Linel
Dark Territory Black Iums D・I・L - Fu・Za - Iskaan - Shasta
Orcs Lilpyrine
Giants Shigrokshik
Goblins Oroi - Ugachi
From RW Rath Kirito
Glowgen DS Gabriel
Reality/Other Games
Rath Aki Natsuki - Higa Takeru - Koujiro Rinko
Others Cel - Clovis - Doctor Kurahashi - Endou - Kirigaya Midori - Konno Aiko - Merida - Sada Akiyo - Yuuki Kouichirou - Yuuki Kyouko - Yuuki Shouzou

Start a Discussion Discussions about Sachi

  • Sachi *-*

    22 messages
    • Yui is an AI, created and designed by Kayaba. Any similarities between the two are completely coincedential (sorry to trample on your hopes). ...
    • the sao world..........
  • Looking into Sachi IRL?

    5 messages
    • The players who died in the game also died irl, they mentioned that at ep1
    • What has this to do with the question at hand? The question was about looking up her real life identity, not whether she was still alive...

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