Kemeko Deluxe!

When Sanpeita Kobayashi was a child, his lovely friend had to move away, but she vowed that in ten years, they would meet again—as husband and wife. Ten years later, Sanpeita is a high school student, but he hasn't forgotten the feelings they shared. Sanpeita awakes from a dream about his last day with her, only to have his morning interrupted. A weird robot girl is battling other robots in his bedroom, claiming to be his wife. The robot's pilot looks like none other than Sanpeita's long-lost, childhood friend. But who is she really? Why did she have to leave? And what does she have to do with the Mishima Electronics Corporation?The high school student Kobayashi Sanpeita dreams he is engaged to a beautiful girl. Then one morning, a strange homely girl suddenly breaks through a wall in his bedroom, fighting spider-like battle droids, to tell him that she is his bride and that her name is Kemeko. In order to escape, Sanpeita flees his home and runs to school, but Kemeko follows him.