So I'm a Spider, So What?, Vol. 10 (Manga): Volume 10

Mother, have you heard the news that you’re dead? The other mes have been hard at work around the clock, consuming more and more of Mother’s soul. And today is the day! Ever since Mother tried to eat me as a wee just-hatched spider baby, it was inevitable. When the dust settles, only one of us will walk outta that labyrinth alive-and it ain’t gonna be her!!