The classmates were all frightened by his expression, so no student ever dared to cause trouble for him. The worst thing they did was secretly call him a freak behind his back, but when they saw him, they avoided him from afar. This continued until university. After starting university, Liu Sisi and Liu Rui were in different universities, but Liu Sisi wasn't too worried about Liu Rui's personality; he had gotten along peacefully for so many years.
In university, no one would bother him anymore, since universities are full of all kinds of people, so they are more tolerant.
Liu Rui would only speak a few words in front of his grandfather, perhaps to put his grandfather's mind at ease.