Tsubasa Ootori

According to Japanese wiki, he appeared as one of 3 knights of Doji's company in the manga and his outfits, eyes, etc. were different from the Anime. His eyes were closed often in manga. He is part of Dark Nebula's Dark Trident group, consisting of also Yu and Reiji. They also all have Dark Moves in the manga.

Season 2, Beyblade Metal Masters (Baku/Explosion): In the beginning of season 2, he develops a great fear of losing in the battle since his loss to Ryuga in season 1 and L-Drago infecting him with the dark power during Battle Blader. His dark side gets triggered during the World tournament qualification battle against Kyoya, which would determine if he was to get a spot in the team or not. Kyoya won, but decides not to join the team, so both Yu and Tsubasa have another chance to join the team. When the dark power awakened inside of Tsubasa, he started to become afraid of battling because he would often change to his dark personality.

As a member of Japan's team Gangan Galaxy, he lost his first battle against Chiyun and continues to go berserk during his battles. As time went on, he even ends up in the hospital due to his dark side taking control over him. The dark Tsubasa would tell him to stop being a good boy and show his true colors and that it was him who even called him to become stronger to begin with. He breaks out of the hospital and once more goes berserk in Team Excalibur's member Julian Konzern's garden until Ryuga tells him to become one with the darkness and to stop fighting it. Thanks to that and the support of his friends, he soon ends up overcoming it.

He also remembers that as a kid, he lost against in a beyblade battle against a cheater and he developed so much hatred that he almost fought back with the same methods. However, what also helps him overcome the darkness is the fact that he also remembers that he actually ended up winning over the cheater in a fair battle. After the fight against the Garcias, Tsubasa and Yu get knocked out by Damian Hart and can't participate in the final battle against the American team. After Gangan Galaxy wins, the HD Academy's true goals get revealed and both Yu and Tsubasa join the team again to stop them from destroying the world with the Spiral power.

Season 3, Beyblade Metal Fury (4D): Even though he's not a legend blader, he supports the legend bladers in fighting against Nemesis at the end of the series as a member of WBBA (order of Ginga's father). During the season, he participates in the Tower of Babel tournament, as well as the Destroyer Dome battles. He doesn't however participate in the tournament that Gingka and his friends are hosting to awaken Masamune's Ray Striker.

Zero-G: Tsubasa is now grown-up and is supporting the new generation of bladers as a director of WBBA after Gingka's father. After the Nemesis crisis, people only started to slowly gain back interest in beyblading and the cast from the first three seasons set it as their goal to bring beyblading back to its former glory. Their goal is to start a new World tournament.