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Official Site: Koushun Takami

The following is a list of characters that appear in the novel, manga, and film versions of Battle Royale.

Boy #15 is the primary protagonist. He has witnessed a good deal of troubling events throughout his life. His father was killed by the government for struggling against the regime, and his mother died while he was in third grade. When the rest of his family rejected him, Shuya was put in an orphanage. He is willing to trust others, not wanting to take part in the Battle Royale program. He tries several times to rally fellow students in an attempt to escape, but fails. Consequently, he narrowly escapes death at the hands of his classmates on several occasions. Shuya is a self-proclaimed "rock star", listening to and playing rock 'n' roll music in spite of the ban on the genre. Shuya's favorite artist is Bruce Springsteen. After the death of his best friend Yoshitoki, he vows to protect Yoshitoki's crush, Noriko, in his stead. Shuya survives the contest and escapes. In the manga version he emigrates to the United States.

In the English manga he has the nickname "Shu."

In the original novel Shuya develops an anger and feels remorseless when he kills soldiers on the boat. In the manga, Masayuki Taguchi altered Shuya's personality so the characters could differentiate themselves, as he believed the serialization of the manga requires more of this aspect than other mediums such as novel and film. Taguchi described Shuya as developing a justice-oriented personality like "the character of a shonen manga." As Taguchi developed Shuya's pacifistic characteristic, he decided to change the ending and allow for Shuya to spare the soldiers in the boat. Taguchi somewhat felt that Shuya pulled him into the story.

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