Sachi Faker

Sachi Faker (사치 페이커, Sachi Peikeo), also known as the "Ticket Hunter", is a D-rank Regular and part of the top 3 predators within the Hell Express. He is apparently the one that Regulars should be most afraid of at the first station. He boarded the Hell Express with the main goal of stopping Hoaqin. After the events that took place on the Last Station, he was last seen departs from Baam's team with Boro and goes their own way.

History
600 years ago Sachi undertook the Hell Express when a Slayer candidate gradually killed everyone on board until, in the end, there were only five survivors left; he and three others forfeited when one of the five survivors ended up dying. During this experience on the Hell Express, he, Aka Williams, Boro, Daniel Hatchid and Roen were the five survivors.

Appearance and Personality
Sachi looks much like he did 600 years ago, with fair skin, drooping crimson coloured hair and similar coloured eyes. He currently has a black eyepatch-like thing covering his left eye.

He appeared to be quite easygoing in the past but this has changed into a more serious persona in the present. He seems to blame Boro for Daniel going the wrong way and came to the conclusion to avoid him because of his personality.

Wooden Horse
At the 37th Floor station, Wooden Horse, Sachi arrived with Aka whilst blaming Boro for Daniel taking the wrong path. After being filled in on what Daniel was planning to do, Sachi reflected on his thoughts of when Aka came to find him before saying that he happened to be around thanks to Emile.

At the 'Altar' Boro, Aka and Sachi witnessed Hoaqin coming out of the train with Boro noting that he looked smaller than last time. Boro then watched in dismay as Hoaqin effortlessly decimated a large amount of the Regulars at the station.

Later, with only 10 minutes left to board the train, Boro and company raced towards the stairs of the train but caught the attention of Hoaqin on the way. With freak lightning interrupting Hoaqin's assault, Baam, Koon and Rak swiftly arrived on the stairs leading into the train. Daniel told them all he wouldn't let them on to the train and that they would take control of the train until Hoaqin was whole and Roen was alive. Sachi then said that it was their job to talk sense into Daniel. A brief scuffle broke out between the two sides but it was interrupted when they were all teleported to the train conductor's office. He introduced himself and then informed them about a game that would decide who would become the Slayer candidate in a month's time. At that, he teleported them away to different locations in the train.

A Month
Their group immediately encountered the guardian Yokim and they planned on taking him down until Hwa Ryun suggested that from that point onwards, Baam was to take all tests by himself in order to prepare for challenging Hoaqin. Sachi then watched as Baam took on Yokim and discussed with Boro about Baam's lack of killing intent and how he wouldn't be able to match Hoaqin if he didn't develop it; Baam eventually defeated Yokim and they passed the stage.

During their traversing of the train's pathways, the group eventually encountered the "god" of guardians. Sachi and Boro suggested turning back due to the guardian's fearsome reputation and power, but Baam adamantly decided to stay and challenge the "god" of guardians. At that, the guardian snatched Baam up and took him away. Boro and the others then waited for three weeks for Baam to return.

Eventually Baam hurriedly returned and the group narrowly made it to the 4th stage in time.

The Dallar Show
Sachi and the others listened to the rules of the Dallar Show and then watched as Koon coolly won the first round. During the second round game, "Transferring the sweetfish", Sachi was partnered with Aka and Boro. As they navigated the surprisingly treacherous pipes, the three of them determined that stopping Hoaqin was more important than winning the round.

Yuri Jahad
Sachi noted that because the train conductor had died, they would have to take a substitute test to reach the 39th Floor. While taking substitute test, Sachi uses Silence of Rose to bind the guardian for Baam to strike it.

The 'Name Hunt' Station
When Baam's group descended upon the Name Hunt Station and got attacked by a group of regulars, Sachi used his vines to hold them in place and noted how Viole's name being called upon in the list of entering regulars must mean that someone on the floor knows his real identity and suggested to move quickly.

When introducing the 'Four Lords of FUG', Xia-Xia named Sachi as 'The Cruel Wizard'.

Following the 'Four Lords of FUG' introduction, Sachi was split off from the main group to head towards the no-named area and lure out the 10 bosses.

After Rak and Yeon were captured as hostages, Sachi was assigned to the hostage team 'Hwaryun' together with Hwa Ryun, Boro and Novick.

While looking for the hostages, Sachi and his group first ran into one of the 10 bosses - J.M, who was quickly dispatched by Novick. Later, they ran into the boss Lulu who tried to defeat the group by entrapping them in a Shinsoo bubble, which Sachi single-handedly reflected using his vines.

When the battle between Yuri and Karaka started at the bridge leading into the Hell Train, Sachi escaped to the train together with the rest of Baam's group.

Wangnan
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The Floor of Death
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New Power
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The Hidden Floor
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The Hidden Hidden Floor
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Khun Edahn
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Jahad's Data
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Training
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The Advent
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Three Orders
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Evankhell
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Kallavan
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Tower of God: Part 3 - Deng Deng
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Powers and Abilities
Sachi is said to possess outstanding physical ability and "special" Shinsoo controlling abilities. Also it is said that he is "absolutely" powerful at "one-vs-many" battles. It is stated that he is among the three strongest D-rank Regulars. He notes that he experimented with "forbidden spells that deal with souls" and lost an eye as a result of a "sin" he committed.

Sachi possesses a wand with which he can directly attack or cast a special spell.
 * Silence of Rose: Sachi trained for hundreds of years to master this spell. When he uses this spell, his left eye starts to glow. When using this spell, thorny tendril-like vines emit from the wand, which bind the target and won't release until it dies.

Notes and Trivia

 * He is probably named after the Italian former football coach Arrigo Sacchi, or Argentine former football player Federico Sacchi.
 * His last name might be derived from the Korean professional League of Legends player codename "Faker".
 * Sachi means luxury in Korean. While in Japanese it means luck, happiness, and desire.
 * SIU has stated that he had the highest level of combat skill other than Baam and Androssi in team Baam.

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Sachi