Judai Rhodes

Judai Rhodes (・ロードス) is a main character in Silver NX.

Judai was introduced as a rather quiet and intelligent, yet powerless student enrolled at Universal Academy, and the best friend of Shunichi Takahashi and Tatsuya Honda. As a child, he was tormented by nightmares of a destroyed kingdom, as he was later revealed to be the reincarnation of Karma the Red.

Together with Tatsuya and Serena Tenjoin, Judai became part of Shunichi's new group, Team Monolith. Judai's disappearance after the Seven Stars Tournament served as a catalyst for Shunichi's descent into darkness. After being found, Judai continued to aid Shunichi against other threats.

Unfortunately, after surviving the Zeta Race and returning to Earth, the team became trapped in Theodore Heinrich's death chamber, where Judai sacrificed himself to allow his friends to escape.

Background
As a child, Judai loved Battle Fusion, a popular trading card game. Both his parents were rarely at home, as they were busy working. As a result, Judai spent many of his days playing Battle Fusion with neighborhood children. Around this time, Judai went on a school trip and somehow entered an unauthorized room within Harper Corp, which is where he gained the ability to summon a Trinity.

Soon after, Judai began having nightmares where he would see a kingdom burning in flames and himself battling a monster. Due to his nightmares, Judai couldn’t get any sleep which led his parents to arranged for him to have a medical procedure performed on him, which not only stopped the nightmares but also suppressed his Astral Form. A few years later, Judai was playing in a river where he heard the screams of a drowning Tatsuya.

He rushed to rescue him and afterward, Tatsuya thanked him and the two never crossed paths for several years. At some point, Judai heard Tatsuya was getting into a fight with some gang members while standing up for a kid and rushed to his aid. Judai lived in near-poverty, due to his father's gambling addictions. Judai went to great lengths to repay his father's debts, such as working at multiple jobs, and began studying extra hard in order to have a successful career and not end up like his father.

Judai became well acquainted with Tatsuya, and it was during a study session that the two met Serena Tenjoin. Years later, Judai encountered Shunichi Takahashi and the two got along quite well, though unbeknownst to Judai, Shunichi was a cruel and amoral delinquent.

Death Chamber Arc
Shunichi later thought of him, Silver, Nexus, Alpha, Omega, Hayato, and Joeri when he said that he was not going to back down in his battle against Kaiser Schmidt like how they never gave up.