Hyo Imawano is
the mastermind behind the events that occurred during the Rival Schools
storyline, with his main goal to take over all of Japan. Hyo is ultimately
defeated by students from Taiyo High School, which include his twin brother Kyosuke.
Hyo is also playable in the game, with his ending showing him successful in his
plans but regretting having to defeat Kyosuke in doing so. However, this ending
is not canonical.
In Project Justice,
Hyo appears as the final boss of the game, but is not the main antagonist. In
most of the game's Story Mode, he initially appears to defeat Kurow
Kirishima, who had been shown brainwashing Hyo earlier in the storyline.
Afterwards, he is shown being taken over by his father's spirit, where he
becomes Demon Hyo, the final boss of the game. Again he is defeated
by Kyosuke, but dies from the fight.