|First Appearance||Vol.2 Chapter 39|
|Last Appearance||Vol.2 Chapter 39|
Jääskel (야스켈) was a large, humanoid Regular with four arms that each carried a sword. He appeared during the 29th Floor test and was on the team that faced Koon's team. Jääskel seemed to have tremendous confidence in his abilities, but he was defeated in one hit by Koon Ran. Jääskel failed the test after Koon's team beat Jääskel's team when Edin Dan disabled the opposing team's cannons.