Chronicle article: In addition to men, women, and brothers, the setting of brothers is similar to O in AOB, but there is no pheromone estrus or anything like that, it is a man's body that has a uterus and can give birth to children.
Warning??: Purely entertaining article, almost everything in it is made up by myself, so! Can't believe it! Can't believe it! Can't believe it!
Purpose: Happiness makes people happy