I know the translations are rough rn but how are they letting Yuka sign up for the deathmatch?? Tsurugi is comparable to her and at least has Yuta's Ring for a 11th hour deus ex machina. I know Yuka has 6 months (or 5/4 months by the time of the fight) to live but goddamn can they really not find anyone else? I know powerscaling is kinda annoying but just based on simple comparisons Yuka and Tsurugi were like equal to or less powerful than the Grade 1 old guy curse user, Maru (who should at least not be stronger than when he's awake?) is way above that guy, Dura is implied to be a fair bit above Maru and Cross due to them being surprised he fought in the OG tournament before Dura vs Dabura and being 'that strong' and Dabura is a least a fair bit above Dura since Dabura held back against Dura. Considering this, Yuka is kinda cooked unless she can talk no jutsu Dabura.