The son gets married at the age of 100 and gets married at the age of 125. The limit is the last child, because it is difficult for the woman to give birth between the ages of 45 and 50. The protagonist is 250 years old and the grandson is 1 year old. (The protagonist's lifespan can be saved in two levels) The grandson is 100 years old, the son is 225 years old, and the protagonist is 350 years old. At this time, I can't think of seizing the grandson to marry and increase the child's properties by taking medicinal materials.