Fudou Hakase

As the father of Yusei Fudou, he was deeply involved in the perilous Old Momentum project alongside MIDS, with Rudger and Rex Godwin as his helpers. Realizing the project's extreme danger, he sought to halt it, leading to Rudger taking over his role. Tragically, both he and his wife perished in the Zero Reverse blast. Before his demise, he entrusted powerful dragons-Stardust Dragon, Red Demon's Dragon, and Black Rose Dragon-to Rex, who used them in an effort to track down three of the five Signers.