Grace Mirchea Luslec

Grace Mirchea Luslec (그레이스 미르치아 루슬렉, Geuraeiseu Mireuchia Luseulaek) is Slayer No. 1 and the living "god" of the most dangerous and secretive criminal group, FUG, in the Tower.

Although FUG’s true motives and goals are not clearly known, it is true without a doubt that they exist in the shadows of the Tower, hiding and corrupting. People call Luslec the "God of the Devils" (악마들의 신, Ahkmahdeuleui Shin) or "Demon King" (마왕, Mahwahng; 魔王).

Even though the FUG has a dangerous status, the influence of Luslec's group can never surpass the Family Heads of the 10 Great Families, as long as they hold contracts with the Tower's Guardians. Nevertheless, Luslec holds a rank that surpasses a few of the Family Heads. This is because he represents the "Absolute Darkness" of the Tower.

History
Luslec was one of those that helped the 10 Great Warriors climb the Tower. Garam Zahard stated that he was a warlord serving under the irregular 'V' who was part of Zahard's original 12 companions. No one knows how or why he fell and became the leader of a such a dangerous group; although the author hints that it has something to do with how Zahard became king and the forgotten civil war his master fought against Zahard and the 10 Great Warriors.

In Part II, it is revealed that Twenty-Fifth Baam had joined FUG and adopted his family name, becoming Jyu Viole Grace.

FUG
Jinsung mentioned that he would put in a good word to Mirchea about Viole's team remaining a team.

Epilogue
When Jinsung invaded Karaka's secret base, the former mentioned that Mirchea was very surprised to learn of the attempted murder of Viole by members of FUG.

Tower of God: Part 3 - The Nest
After the failure of Khel Hellam to try to stop the war with the Canine People to defend the Wall of Peaceful Coexistence, as the war heroes were freed and the Canine People suffered a great loss, Sofia Than stated that regardless of what Luslec may think, he is unable to act directly yet as it would cause the Family Heads to act as well, resulting in a massive war that would be beyond Jyu Viole Grace's power to intervene in and revealed Luslec wants Baam to grow from these challenges. Hwa Ryun later stated that though Luslec may not be able to participate directly, he will ask the Elders if they want to save Ha Jinsung if Baam knows where he is.

Powers and Abilities
Apparent in his ranking as the 15th top High Ranker, Luslec is a great warrior, even surpassing some of the Great Warriors. His prowess with his great black Hook is said to be able to pierce anything.

Notes and Trivia

 * He may have been named after the Romanian footballer Mircea Lucescu.
 * While he shares the same surname as Grace Arlen, the wife of his master, it is unknown if they are related.

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Grace Mirchea Luslec