Marten (マーテン, Māten?) is the main settlement of the 57th Floor of Aincrad. Marten was a base camp city while the front line was still at the 59th Floor and is a popular place for its restaurants and as a tourist attraction.[1]


Marten is a large urban city, which has a large number of buildings built compactly, and with narrow alleyways between the buildings.[2] All buildings within the city have red terracotta tile roofs and most of them have two to three floors, with the first floor having columns, most of which form arches.[2] The city has stone floors and also has a round[1] and spacious central plaza, with a park taking the most space within it.[2] A rather large Gothic[2] church or cathedral is located in the north side of the plaza,[1] while the rest of the plaza is lined with Non-Player Character (NPC) and player-owned stores.[3]

The outside area of Marten is a grassland filled with some craggy old trees.[4]

Notable Locations

  • Unnamed NPC restaurant.
  • Cathedral
  • Marten's plaza
  • yaMahaya Lodge


Aincrad Arc

A Murder Case in the Area

On April 22, 2024, Asuna and Kirito came to the city, as Asuna promised to treat Kirito to dinner at a restaurant of his choosing. However, their meal was interrupted when they heard a scream coming from outside. When they reached Marten's plaza, they noticed a person dangling from the 2nd floor of a cathedral at the front end loop of a rope. After the person died and a “Duel Winner” notification was not seen anywhere in the vicinity, Kirito and Asuna began investigating the mysterious Murder in the Area case. Unable to find the culprit anywhere, they asked the crowd at the cathedral for any eyewitnesses. After hearing the story of an eyewitness named Yolko, they escorted her to the yaMahaya Lodge, as she was reluctant to return to the lower floors by herself. The two then traveled to Algade to have Agil inspect the murder weapon.

The next morning on April 23, at 9:00, Asuna and Kirito gathered at the plaza of Marten and headed to a nearby cafe for breakfast. While eating and discussing, Kirito suggested testing a theory about the Damage over Time effect and they headed out of town. After proving that the Pierce Damage over Time effect was nullified within the Area, they returned to Yolko's inn by 10 AM and then went to a restaurant to talk about the case in private. After learning about the fate of the Golden Apple guild, they led Yolko back to the inn with several days worth of food. After discussing their remaining options on what to do next, they decided to contact Heathcliff for advice, so they traveled to Algade again to meet up with him.

After Schmitt requested to meet with Yolko before he would tell them the location of the shop that Grimlock frequented, Kirito and Asuna brought Schmitt to Yolko's room in the yaMahaya Lodge in Marten. After Yolko was seemingly killed within the inn room by a hooded player, Kirito jumped out through the window to reach the roof of the building opposite the inn and began chasing the hooded player. However, before Kirito was able to reach him, the player activated a Teleport Crystal under the cover of the five o'clock bell chime, preventing Kirito from hearing the destination. After he returned to the inn, he asked Schmitt for the location of the shop and to write down the names of the Golden Apple members, after which, they escorted him back to his guild headquarters on the 56th Floor.



  • Marten's plaza was said to be round in the novel, while the anime portrays it as a rectangle.
  • The anime does not portray a Teleport Gate within Marten's central plaza.


Aincrad Locations Navigation Bar
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Floor Notable locations and landmarks
1 Town of BeginningsBlack Iron Palace, Hidden DungeonMonument of Swordsmen[Navbar 1]Monument of Life[Navbar 2]Chamber of Resurrection[Navbar 3]TolbanaHorunka Village, Medai Village
2 Urbus, Urbus Teleport Gate Plaza, Marome Village, Taran Village
3 Forest of Wavering Mists, Zumfut, Zumfut Teleport Gate Plaza, Dessel
4 Rovia, Rovia Teleport Gate Plaza, Bear Forest, Yofel Castle, Usco Village, Caldera Lake
5 Karluin, Karluin Teleport Gate Plaza, Mananarena, Shiyaya
6 Stachion, Stachion Teleport Gate Plaza, Suribus, Ararro, Castle Galey, Lake Talpha
7 Monster Arena[Navbar 4]
8 Frieven Village, Frieven Teleport Gate Plaza
9 Dark Elf Queen's Castle[Navbar 5]
10 Thousand Snake Castle[Navbar 6]
11 Taft, Taft Teleport Gate
19 Ralberg, Ralberg Teleport Gate, Hill of the Cross, Griselda's Tomb
20 Sunshine Forest
22 Coral Village, Coral Teleport Gate Plaza, Forest House K4, Lake Outside Coral Village
24 Panareze, Panareze Teleport Gate Plaza
25 Giltstein, Giltstein Teleport Gate Plaza, Former location of the Knights of Blood Headquarters
27 Ronbaru Town, Ronbaru Teleport Gate
28 Wolf Plains
35 Forest of WanderingMishe, Mishe Teleport Gate Plaza
39 Nolfret, Nolfret Teleport Gate Plaza, Former location of the Knights of Blood Headquarters
40 Jaileum, Jaileum Teleport Gate Plaza
46 Ant Hill
47 Floria, Floria Gate Plaza, Hill of Memories, Forest of Giant Flowers
48 Lindarth, Lindarth Teleport Gate Plaza
49 Myujen, Myujen Teleport Gate Plaza
50 Algade, Algade Teleport Gate Plaza
55 Granzam, Granzam Teleport Gate Plaza, Knights of Blood Headquarters, West Mountain
56 Pani, Divine Dragon Alliance Headquarters
57 Marten, Marten Teleport Gate Plaza
59 Danac, Danac Teleport Gate Plaza
61 Selmburg, Selmburg Teleport Gate Plaza
65 Old Castle Labyrinth
66 Old Castle Labyrinth
72 Ozmalt, Ozmalt Teleport Gate Plaza, Agarla Village
74 Kamdet, Kamdet Teleport Gate Plaza
75 Collinia, Collinia Teleport Gate Plaza
100 Ruby Palace
  1. Only in New ALO
  2. Only in the SAO official service
  3. Only in the SAO Beta
  4. According to Kirito in Progressive Volume 1, Rondo of a Fragile Blade, Part 1
  5. According to Kizmel in Progressive Volume 3, Barcarolle of Froth, Part 7
  6. According to Kirito in Progressive Volume 1, Aria of a Starless Night, Part 14
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Midgard New Aincrad - See Aincard Location Navigation Bar for locations in new Aincrad
World Tree Alne - Virtual Lab (Floating City) - Yggdrasil City
Alfheim Ancient Forest - Butterfly Valley - Swilvane - Legrue Corridor - Legrue - Thule Island - Undersea Temple
Jötunheimr Great Void - Thrymheim

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