"Dai Wei is a crucial character in the Japanese manga ""President, Please Respect Yourself."" He first appears in chapter one as a freshman in college who is exceedingly arrogant and condescending towards his peers. Dai Wei is obsessed with becoming the best, and he believes that he is better than everyone else. This attitude creates a significant rift between Dai Wei and his classmates, making it difficult for him to make friends.

Despite his insensitive behavior, Dai Wei is intelligent and driven. He is dedicated to his studies, and he sets lofty goals for himself. Dai Wei wants to become the president of his college and is willing to do whatever it takes to achieve that goal. He runs for student council president, and he wins by an overwhelming majority.

As student council president, Dai Wei continues to be arrogant and pompous. He looks down on those who oppose him, and he is dismissive of their concerns. However, his behavior soon catches up with him, and he finds himself isolated and alone. Dai Wei realizes that he needs to change his ways if he wants to be respected and appreciated by others.

Through a series of events, Dai Wei discovers his deepest fear: being alone. He comes to realize that he needs to learn to work with others and to be more empathetic towards their needs. Dai Wei's transformation is gradual but significant. He becomes more willing to listen to others, and he starts to see their perspectives. Dai Wei also learns the value of teamwork and collaboration.

In the end, Dai Wei emerges as a more mature and well-rounded person. He has gained the respect and admiration of his peers, and he has become a better student council president. Dai Wei's journey is a symbol of the importance of personal growth and humility in leadership.

Overall, Dai Wei is a complex and multifaceted character who undergoes a transformation over the course of the manga. His story is a reminder that change is possible, and that even the most arrogant and self-centered individuals can learn to be better people."