Alice in Murderland, Vol. 9 — Kaori Yuki

And then there were three...
The murderous battle royale to determine the heir to the family estate leaves only Stella, elder sister Miser, and youngest brother Melm standing. Adamant about ending the bloodshed, Stella refuses to fight, instead seeking a way out for her family. But ever cold and calculating, mother Olga has different plans, and fighting each other may be the siblings' only chance at survival...