Kutub

It is November 22, 2007. Jirou Kitamura (Keisuke Koide) is spending his 20th birthday alone. As he buys a birthday present for himself in a shopping mall, gathers attention of a 'cute girl' (Haruka Ayase) and she surprisingly smiles at him. Afterwards, she successfully steals a pair of clothes which is noticed by Jirou but he ignores the fact as she walks away in front of him and amazed to see her beauty. The mystery girl, who seems interested in him, follows him into the restaurant, where he was having spaghetti on the advice of her grandmother for a longer and peaceful life. She suddenly appears during which she states that it's 'her birthday too'. The two of them then exchange birthday presents. The girl, who seems unused to everything, behaves very boldly and suddenly rushes Jirou out of the restaurant without paying, provoking a chase through Tokyo. As he spends time with her, Jirou finds himself charmed by the girl. But after a few hours the girl insists she has to leave.

The story then jumps to one year later and Jirou is again celebrating his birthday alone in the same restaurant. All of a sudden, the same girl appears in front of him. This girl, however, has been sent to save him from a disastrous fate by a future version of himself- she's a cyborg, modeled after the girl he met a year ago. While he was rejoiced by her presence. Suddenly, the restaurant was under attacked by a gunman but she saves him and others by throwing the gunman out of the window. Despite her 'cute' outward appearance, she is incredibly strong, and her behavior is erratic. Later on, in his home she reveals her true identity by showing him a 3D projection of his own future appearance as a more aged person who warns him about an upcoming disaster. Its comes to his knowledge that the bullet storm showdown at the restaurant caused him a lifelong paralysis. But, a lottery ticket he bought earlier was fortunate for him. Moreover, he spent all his time and money on one thing is to create her to save himself of the past about 60 years ago. Now, he has recreated the history of his timeline by sending her but it was not supposed to happen but it'll correct itself by recaliberating to the right dimension. In a short span of time, she becomes Jirou's protector as well as a loyal friend and they both share some wonderful moments. She also saves many other lives which happens to be a series of disappointing memories Jirou of the future regretted to witness them dying.

Over the time, Jirou not only becomes dependent on, but also falls for 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 she is still helping him while staying out of sight. Another disaster soon happens: a gigantic earthquake completely devastates Tokyo. As his apartment block collapses, the girl appears to help him but even her inhuman strength isn't enough to save him. After telling Jirou that she now understands his feelings, she is destroyed. Distraught, Jirou spends the next 61 years trying to rebuild her. He eventually succeeds, although he passes away soon afterwards.

Further in the future, 63 years later, in 2133, a girl is told there is a cyborg on display that looks just like her. She is curious, and buys the now defunct cyborg to experience the memories stored in her hard-drive. Intrigued, she then decides to fulfill her wish of going back in time to meet Jirou on his 20th birthday in 2007...