Need help finding a short manga. Its about a female robot that she believes was thrown away by her family, and a guy takes her in and uses what little disposable income he has to buy parts for her, to fix her broken parts. She ends up finding out she didn't get throw out, but lost/damaged somehow and they couldn't find her. They take her back in, but she and the family agrees she would be more happy going back to the guy. She ends up getting hit by a truck, and and the end it shows him buying her another part, and happy. Thanks