Makina-san's a Love Bot?!: Mimika Imose

 A mysterious girl who appears in front of Eita. Her true identity is that she is also a robot, and she works in the dark as a spy and assassin who takes advantage of her cute appearance. The third daughter of the three android sisters, who is called "Onee-chan" because it is a sister machine of Machina. Unable to grow up because she was created with the appearance of a child, she longs for Makina's "adult body" and attacks her and takes her body but fails when her legs come off due to the damage caused to Machina in a past attack. After that, she and Makina start living together at Eita's house.