In a rotting, dying world overrun by demons, the only hope left for humanity is to ascend an endless Tower, where legends say a glorious utopia free of evil lies at the very top. The young girl, Lys, and her father, Lemuel, are on their journey through this bleak, desolate environment, sharing both joys and sorrows. Soon, Lys would uncover a dark secret behind her identity...

I am compiling completed chapters here! More parts are released on webtoons if you are impatient :D https://www.webtoons.com/en/canvas/turris-mystica/list?title_no=744993