The right half of the face is deformed.

According to a query on Douban, in the musical "Phantom of the Opera", the Phantom is an ugly but extremely talented musician. Because the right half of his face is deformed, Phantom is shunned by the world. The Phantom wears a mask, lives underground in the theater, and "orders" the theater through violence, intimidation and other means. The Phantom coaches Christine in singing and falls in love with her.

"The Phantom of the Opera" (Phantom of the Opera/Phantom of the Opera/Ghost of the Opera) is one of the masterpieces of musical theater master Andrew Lloyd Webber. With wonderful music, romantic plot, and exquisite dance, it has become A timeless masterpiece of musical theatre. It is adapted from the Gothic romance novel of the same name by French writer Gaston-Louis Alfred Leroux. Starting from November 17, 2015, the Beijing tour of Weber's original musical "The Phantom of the Opera" opened at the Tianqiao Arts Center and performed 64 times. On September 16, 2022 local time in the United States, "Phantom of the Opera" announced that it would permanently stop performing on Broadway in New York in February 2023.