"--oof!" Namine grunts as they all end up on the ground. She doesn't have much time to think. She needs to ensure the twisted reflection doesn't get back up.

She tightens the grip on her knife, spins, and brings it down into the twisted reflection's chest.

Someone gasps. But she doesn't see if it's the Namine Replica or the twisted reflection.

The twisted reflection ... melts... into reflective water.

Which, all things considered, is not the weirdest way she's seen something die.