She couldn't use the real dad's head for channeling stuff so she stuffed him in a closet and replaced him with a robot who she was using as a massager and making out with to make Naota jealous .
The only reason she ever came on to anyone was so she could use them as a portal for her objects and eventually Atomsk. She felt bad for doing it to Naota though, because he was just a kid and actually got attachted to her, which I thought was sweet.
The end was that Atomsk went to another world and Haruko followed him. :/
They were gonna make a movie where she comes back and insanity ensues but didn't for whatever reason.
