Ndi Igbo that is family oriented is now embracing divorce as if it's anything good to ride home about, God will hold us responsible for what we fail to do to unite our family, Husband love your wives and wives submit to your husband because marriage is honourable in the sight of God
Since the woman is with her children in her father's house, why can't you be giving them money to support for the children, you take them to your sister, you are a wicked man to the children, n your sister too is not a good person.
If the marriage cannot work out, separation n let her have the children while you be giving them money for up keep simple, to be alive n tell the story, instead of death bikonu. Stop stressing, punishing children.
When a man did not marry you properly he can never value you. A man did not marry you properly and you stayed with him and be giving birth. Actually he is not your husband but the father of your children. I don't know why it is too common nowadays