@Simkin specifically, it's a dislike for green bell peppers because of its bitter taste. It's to the point where in the Japanese release of "Inside Out", instead of child Riley refusing to eat broccoli it was green bell peppers instead lol. It seems like red and yellow bell peppers are either fine, or just don't show up that often in Japanese supermarkets?
Also I feel bad that I'm reading this story but fight on until it's completed, Yuina!