The basic premise of the oneshot is that a girl wakes up one day without her memory. She is told by an inventor-type guy (I think he had glasses?) that she is an android robot that he created. He has a newer prototype with him, which is a male and rather expressionless. She's essentially a very 'bad' android who has no grace or coordination whatsoever. The twist at the end is that she is actually human and the inventor's (scientist?) girlfriend, And he freaked out when she told him he couldn't remember him and told her something at random.
I can't say for sure, but the manga might be part of a collection of oneshots. It's shoujo with no adult overtones whatsoever. It's just a really cute and fluffy manga and I'd love to read it again.
Many thanks and a crown of awesomeness to anyone who can help!
