In the eyes of parents, sex always seems to be a difficult thing to say. Even when it comes to it, there seems to be an awkward atmosphere in the air.

Today's children can receive information from all directions on the Internet, including sexual knowledge. It is easy for children to receive the wrong sex education online, which may lead them astray. And their parents regard sex education as a scourge, lest they escape.

So you can watch the following documentary.

BBC No.5 produced a science and education documentary "2 1 Century Guide".

A Japanese story called "The Story of the Birth of Life"