Godlike human in order

It is a story about our main character, Kamiko, a girl in a modern city somewhere in japan. She lives with her parents, and her little brother, she also goes to school every day with her friends Kamiko also have a boyfriend. They have dated only two times, and they really like each other. But all of that ends one day, when she was sneaking out to her boyfriend, in the middle of the night. She gets hit by a truck. And then we start on her new life, in another world.