What is the prototype of real events in the brave?

The prototype of the real events in Lake Biwa is as follows:

In the real event, the father killed his mother first and then committed suicide. The child stayed by his parents' bodies all day and was finally rescued.

In real life, after a period of communication, two people get married and have children, and finally torture each other because of their incompatible personalities. Xiaojin has seen many such examples. In fact, for both sides, everything started with the choice when they were young. However, the child is innocent, the child has no right to decide whether to have a baby or not, and the child's life is given.

Introduction to Pihu:

Lake Biwa is a film based on a true story. The director modified and artistically treated the original story, which is said to be worse. This movie is almost always performed by little heroes. The story is simple, but it is a very worrying movie.

Pihu is about two or three years old and very smart. As soon as I see her, I will think of the little girl in another Indian movie, Uncle Monkey and Little Girl. At the beginning of the movie, Pihu woke up to find her mother, who had committed suicide by taking sleeping pills, and her body was obviously bruised, but for a three-year-old child, she didn't know what had happened. Then Pihu called her father, but his father had gone out.