Voiced by: Naoki Miyashita (Japanese), Michael Adamthwaite (English) Drama actors: Jun Matsumoto (Japanese version), Jerry Yan (Taiwanese version), Lee Min Ho (Korean version)
Domyoji Tsukasa is the hot tempered arrogant leader of F4, the most feared and richest gang in their school. Tsukasa is extremely rich and is also the heir to Domyoji Enterprises, one of the biggest companies in Japan. He spent most of his childhood alone as his parents were overseas and his older sister went to Los Angeles after she get married. At the beginning of this series, his biggest enemy was Tsukushi Makino, who was the only one who dared to fight against F4. However, as the story progressed. He starts to develop a romantic interest for her. He sometimes finds it hard to interact with her and often teases her about her poverty state.
Tsukasa Domyoji is the leader of the F4. At the beginning of the series, he is Tsukushi's biggest enemy, but as the story progresses, he becomes her love interest.
Tsukasa is the heir to Domyoji Enterprises, and his family is extremely rich. They own various houses around the world, including an actual island, a house in Canada, and a house in New York City where his parents live most of the year.
Domyoji spent much of his childhood on his own; his parents were always overseas, and his older sister--as loving as she could be--was always busy studying and eventually married and moved to Los Angeles. His mother, Kaede, is cold to him, and although she loves him, wants to control his life for the sake of preserving the family name. Tsukasa often calls her "the old hag" and "witch," an opinion shared by nearly all of his friends.
Tsukushi's retaliation in the hallway sparks Domyoji's interest, and he is immediately attracted to her daring and strength (the traits he used to admire in his older sister). Despite the harassment he puts her through to keep up appearances, he also constantly tries to do things to impress her - such as trying unsuccessfully to straighten his hair after she tells him that she can't stand his curly-top.
Because he has grown up in luxury and is used to always getting his way, Domyoji is initially not very good at interacting with Tsukushi. He frequently makes fun of her family's poverty and responds angrily when she refuses to do as he says. As time passes, however, he begins to mature and develop a greater understanding of how to interact positively with others.