A skilled fighter, Ryuga took part in the defense of Luciferia. He was killed by a super beam from the End Demon, but he logs out to prevent his permanent death. He rivals Ah-dol in terms of strength. Later, he defends Luciferia again in the Last Saga event. Ryuga has a strong sense of justice and will dive into danger without regard for his own safety. He is based on the Street Fighter character, Ryu.