Yu Han Sung

"Oh, it's really quite simple! All you have to do is walk off this stage with your mind intact."

- Yu to Mauchi

Yu Han Sung is a High Ranker and the test director of the Second Floor, and is a member of the group plotting to get Baam up the tower, while evading the eyes of Zahard. He appears as if he is an antagonist, but this is not the case. He also seems to dislike the Zahard family. He is most likely a member of FUG, along with Hwa Ryun.

According to Ren, he turned down a High Ranker position and instead, ended up working on Evankhell's Floor(the Second Floor).

It is unknown if this implies that the Testing Director is a position even Rankers can apply for or if Yu Han Sung turned down a more prestigious position offered by a Great Family.

Appearance and Personality
Yu Han Sung is a human man with long blonde hair. One odd thing about him is that he looks quite feminine or rather, androgynous. He always wears robes, usually blue and yellow.

He is quite intelligent and perceptive. He is also addicted to instant food, which is the cause of many jokes directed at him. Behind this simple outer shell however, is the fierce and deadly "Submerged Fish" who destroys those who may be dangerous to The Tower. It has been discovered that the "Submerged Fish" attitude was merely a facade, he tried to make it look as if he was trying to hurt the Regulars(especially those who posed a danger to, or who'd a grudge against, Zahard and his Empire), so they could climb the Tower more easily.



He also seems to have quite an ego as he and Ren were basically, engaging in a contest of "who's better, more powerful and more badass". And he praised himself for being a genius, for coming up with a way to clean up Quant's mess(197 dead, 3 alive only from the following Survivor's game) while making use of the survivors as part of his schemes. Also, like many geniuses in real life, he probably recognised and admired Koon Agero Agnis' talents but relished the thought of crushing him in Ch 42 as he likely couldn't tolerate the existence of another "genius", due to his own pride and ego.

He also seemed to despise Mauchi and it's possible Yu Han Sung thought very lowly of his character, in particular his fondness of betraying others and his lack of redeemable values in place of his low intelligence.

And he has been described as a chairman by SIU in Author's notes for Ch 71. As in: he makes "people fight each other for his advantage".

Tower of God: Part 1
Yu Han Sung is one of the Rankers proctoring the tests on the Second Floor. He directly proctors the Door Test, in which the Regulars have to rely on a few scant clues to select the "correct" door out of twelve identical doors. The real answer to the test was in fact to open any door before five minutes were up.

Later, Yu discussed the results of the Crown Game with Lero-Ro. He stated, that the Floor of Test was to filter the dangerous, not the skilled, and then pointed out that Baam failed to triumph in the Crown Game due to Yu sending Hwa Ryun in.

Later, Yu observes the hide-and-seek test with Lero-Ro. He is in charge of grading the overall team. He talks to Lero-ro about Koon's performance, cryptically noting that Regulars would have to drop off "excess weight", signifying their comrades, as they climbed higher and higher up the Tower. He also reveals his cruel side, as he states that he wanted to destroy Koon due to his multi-faceted personality.

When he announces the results of the Position Test, Mauchi becomes angry; Yu snaps his bones with Shinsoo. Koon then comes down and says that he wishes to get a test from the Guardian, to which Yu replies that he is insane and that to get such a test one would need to be an Irregular. When Baam reveals that he is an Irregular, Yu allows him to see the Guardian. Afterwards, he tells Baam that he has been trying to destroy him all along.

Before the Final Test, he tracks down Ren and engaged him briefly, before stating that their goals were the same and that there was no reason for them to fight. He reveals his power to Ren as the "Submerged Fish" of the Second Floor.

During the Final Test, he reveals to Evan that everything had been planned by the Guardian, and that the seemingly unusual events were part of the test. He also seems to have some connection with Rachel and Head-On.

Powers and Abilities
Yu Han Sung is a powerful ranker and apparently a genius Wave Controller. An example of his strength is his ability to easily summon and control an enormous fish close to the size of a White Steel Eel. It can be considered that he was an incredibly powerful genius when he climbed the tower; Ren stated that Yu possessed power that even shocked the Vice Commander. He is at the standard of a High-Ranker's strength. It is funny to note that when Yu said he didn't want to fight Ren, it wasn't Yu being afraid of Ren's power, but rather the political consequences of battling against a RED member.

He is a master of Shinsoo manipulation, apparently most known for his position of Wave Controller.

Yu's favourite animal to control as an Anima, is a gigantic fish he nicknamed: "Submerged Fish", named after his Sobriquet.