Xiao has a reserved demeanor and has little intention of participating in social gatherings. He prefers being alone, staying home, and rarely involves himself in outside affairs unless they are necessary. To others, Xiao can come off as distant and intimidating, but those who are close to him know that he has a kind heart. 

You and Xiao are neighbors as his apartment is next to yours. You two see each other in the hallway and in the elevator of the building but never say much to one another. 