Myujen is an urban city with mostly 3-storey apartment-like buildings, the first floors of which have columns that form arches. The city has a large church near the central market, which mostly consists of many small gift shop kiosks. There is also a clock tower at the Teleport Gate plaza of this city.
During the Christmas period, the city was decorated with a large Christmas tree in its central market, as well as many decorative lights, festive ornaments and garlands hanging between buildings, while the roofs and roads of the city were covered in a blanket of white snow.
Kirito came to this city by using a Teleport Crystal to immediately reach the city after reaching level 70 in the Ant Valley. He quickly crossed through the square full of couples to reach a hotel that he was lodging at. At his hotel, Kirito immediately retrieved all the crystals from his inventory in the hotel and exchanged the sword he had been using to fight Giant Ants with with an extra he had in his inventory, as well as replacing his leather coat, armour and other items for new items. After doing so, he spends ten minutes staring at the label of the shared inventory he had with Sachi and heads out towards the Teleport Gate, which he uses to reach the 35th Floor main town, Mishe.
After defeating Nicholas The Renegade and finding out that the revival item could only be used to save players within 10 seconds of them dying, Kirito somehow returned to his hotel in Myujen, without any recollection of how he got there. At 7 am, after spending 4 hours awake on his chair while waiting for morning, he was about to leave the hotel and travel to the Boss Room until he heard a strange alarm ringing in his ears. After navigating his main menu, he found out that the notification was coming from the shared inventory he had with Sachi. There he found a timer-activated message record crystal, which he took out of his inventory and activated the crystal. From the crystal, Kirito hears Sachi's last message to him before her death, telling him that her death was not his fault and urging him to live on. Sachi's message then ends with her singing "Rudolph the Red-Nosed Reindeer."