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I rushed downstairs with the consciousness inserted into a slime, as I reached the three girls fighting against two Hulk Zombies, and three giant Hands made of the floor. Yes, made of floor, and enhanced with phantom.
All while also fighting against an army of dozens of phantasmal soldiers. They were having it rough, weren't they? Oof.
I rushed forward without even considering safety as I used this slime body to wrap around one of the Hulk Zombies and parasitize it.
How? I got inside of its ears and took over its brain and soul, using it as a puppet.
The girls were fighting against the phantasmal soldiers and fending off the giant Floor Hands, as I will call them, so I sued my giant new zombie body to punch one of the hands into debris and used death magic to dispel the phantasmal energies possessing them, literally exorcising the floor.
Check "The Protagnist's Sister Is Actually the Strongest"!