1 . Child of Japanese visa
—The child can come to Japan and can do ANY kind of job.
2. Japanese nationality
—If he/she wants to obtain it.
However, you must be aware that you only have one nationality if you naturalized to Japan, which means you will lose Philippine nationality.
—The child has a right to claim the inheritance of the father.
In case the father is the man with certain property, you have the right to claim to have that.
These are your natural right. Don’t hesitate to exercise your right.