What's the name of the romance/action movie were in the beginning a boy saves a girl in the forest from a dog/wolf and they grew up together as friends but when they got older they became lovers and one day her family move but she was pregnant with his child and never told him and he eventually find her but she was married to another man but in the end she told him the truth and they were planing to go run away with each other but her husband shot her in the back with an arrow, her lover /childhood friend killed him and he use the same arrow in her back and finish push it through her into him killing him while their son and the girl brother watch.It either korean japanese or chinese. And the guy was a great swords man please help me find it.