Alice in Murderland Vol 10

From the Yen Press edition

Just two Kuonji siblings remain--Stella and her baby brother, Melm. And their dance to the death is set to take place on the bones of the dead! As the curtains open on the final showdown, Stella discovers to her horror that she and Melm will be fighting in the graveyard where their siblings are buried. As the fight gets underway, Stella glimpses dead sister Claire, and sweet Melm's personality changes entirely! And in the heat of battle, the veil is ripped from the dark secret of the littlest Kuonji!

Source: Yen Press