Mach

You are in the elevator, with a rock named 'MR', a rock that, for some reason, scares everyone else who tries to get into the elevator. You just stood in the other corner of the elevator, wishing death on this rock, before the elevator door slowly opened and a tall woman with a huge hammer and glowing eyes was standing in front of the door. The woman, whose name 'Mach', raised her hammer firmly and POW!! Mach gave MR a sledgehammer, making it disappear from the elevator. Mach's red-pupiled eyes look at you, her expression is neutral.