Completely reworked episode/chapter speculation ( I think this is more possible to happen)
last chance to turn back since this is manga content
[Episode 19-21/Chapter 5]
Lane accepts Hyuga and Hikaru's challenge to battle. In the first round Lane ring outs both of the brothers. In the second round the brothers work together and smash him from both sides, getting a ring out on Lane. Lane gets mad and in the 3rd round easily bursts the duo. While their pieces are in the stadium Lucifer goes in to shatter them, but Shu comes and calls out to Lane, getting him to stop. It gets late in the day so everyone heads back to the city. While near the Beigoma Academy Beyclub Shu meets up with Valt, and Shu says he's working on a new project.
[Episode 22-24/Chapter 6]
Hyuga is scared that his bey was almost broken while Hikaru was impressed by Lane's power, but they both agree they have to get stronger. While out training at the Victories Delta is showing off his new bey, Abyss/Death Diabolos. Drum is impressed, and Hyuga and Hikaru find the Victories and come in, wanting to battle. They decide to face Delta, who also has a Super King bey. Delta beats Hikaru with Abyss and Hyuga with Death. Its lunch time so Hikaru and Hyuga leave, but will come back for a rematch. Drum gets inspired and evolves his Dragon. When the 2 come back, Drum has a Super king bey. They have a 2 on 2 battle with Drum and Delta vs Hikaru and Hyuga. Abyss knocks out Super, and Dragon and King have such a big clash both of them are smashed out of the stadium. Delta and Drum win, but Drum says they're strong and should train even more.
[Episode 25-28/Chapter 7]
Its almost time for the legends festival and the brothers are close to A Rank so they can be in it. They think if they can take out a strong blader it'll get them enough points, so they go to find one. They find Aiga at his families farm, who just made a Super King bey. The challenge Aiga to a 2 vs 1 battle, and Aiga burst them both. Hikaru and Hyuga are a bit down but they come across Beigoma Academy Beyclub, Where they get Toko and Nika's help to make new moves. Hyuga uses hyperions blades to hit the walls and propel himself around the stadium, and calls the move Super Boost. Hikaru has Helios circle around the center so he can take the center and blow back other beys, and calls his new move King Shield. The next day Hikaru and Hyuga go to get a rematch with Aiga. Hikaru blows Achilles away from the center and Hyuga smashes it with Super Boost, and they burst Achilles together. Aiga is impressed, and the 2 brothers are now A Rank.
[Episode 29-32/Chapter 8]
Its finally time for the legends festival and the brothers are confident and promise to see each other in the finals. The way things work is you have to get a certain amount of points from battling (as you know ring out/stamina finish is 1 point and burst is 2 points) by a certain time, those who don't are eliminated. The final 8 get put into semifinals matchups which leads to the final. Hikaru is doing good, easily ring outing and bursting beys while Hyuga is having more trouble. Shu comes to battle Hyuga cause he can see Hyuga is scared he wont be able to get enough points and will be eliminated. SHu tells Hyuga to calm down and just believe in his bey. His bey seems to be going crazy, but its actually just doing a flash launch type move, but it gets ringed out by Shu's new Spriggan. Next round Hyuga uses the new move (He calls it Super Ring) to circle and and try to get a ring out. Shu uses counterbreak and Hyuga gets bursted, but Hyuga feels alot better. The first round is over and 20 people were eliminated. (During for a short period of time between the start of the round to when Shu faces Hyuga, we see some other blader battling with new beys. These will include Delta,Phi, and possibly Gwyn, along with maybe Daina if he gets a new bey.)