My Girlfriend's Child Vol. 7

Things are starting to look up for Sachi. Not only has she made up with her best friend Yazawa and begun taking classes through a correspondence high school, but her baby is healthy and her bond with Takara strong. They have even shared their intention to get married after graduation with Sachi's mother and older brother. However, things take an abrupt turn when Sachi's father shows up at home again unexpectedly. What does his return mean for the young couple? Or for the future of Sachi's family?