My Girlfriend Is a Cyborg , Boku no Kanojo wa Saibgu? is a 2008 Japanese drama film directed by Kwak Jaeyong, starring Haruka Ayase and Keisuke Koide.
The story then jumps to one year later, as Jiro again celebrates his birthday alone in the same restaurant. All of a sudden, the samelooking girl appears in front of him. Jiros older self from 65 years in the future had sent this girl to save him from a disastrous fate. She was actually a cyborg, modelled after the girl he met a year before in 2007. While he rejoices in her presence, the restaurant is suddenly attacked by a gunman, but she saves him and the other guests by throwing the gunman out of the window. Despite her cute outward appearance, she is incredibly strong and behaves erratically. Later, in Jiros home, she reveals her true identity by showing him a 3D projection of a video in which an elderly Jiro from the future warns him about an upcoming disaster. The old Jiro told him that the shooting at the restaurant paralyzed him for life. However, a lottery ticket he bought earlier was fortunate for him. He spent all his time and money on one thing creating the cyborg girl to save his past self about 60 years ago. Now, he has recreated the history of his timeline by sending her. This was not supposed to happen, but things would correct themselves by recalibrating to the right dimension. In a short span of time, she becomes Jiros protector as well as a loyal friend and they both share some wonderful moments. She also saves many other lives from tragic deaths that old Jiro had regretted witnessing.Over time, Jiro not only becomes dependent on, but also falls in love with her. However, when she cannot return his feelings, he gets irritated and forbids her from seeing him unless she can do so. He begins to regret this, especially when it becomes apparent that she is still helping him while staying out of his sight. Another disaster soon occurs a gigantic earthquake completely devastates Tokyo. As his apartment block collapses, she appears to help him, but even her superhuman strength isnt enough to save him. After telling Jiro that she now understands his feeli
Source: Wikipedia