Sakura accidentally got a calendar that her mother had used, and she was very happy.This calendar records almost everyone's birthday. Sakura discovered that today happens to be her grandfather's birthday, and she hasn't met her grandfather yet.When she learned that her grandfather was prejudiced against her father, she was surprised, so she decided to give him a gift like her mother did and told him that they were living happily now.Grandpa was indeed very happy after receiving the gift, and even went to Sakura's father in person to apologize to him.