Following their performance at the Black or White event, the idol group IDOLiSH7 is at the height of its popularity, with offers for various concerts and work coming in every day, much to the joy of the seven boys and their manager. However, as their fame continues to rise, Riku Nanase's health begins worsening due to the heavy workload. With the gigantic idol duo Re:vale showing interest in the group and the reopening event of the Zero Arena coming up, IDOLiSH7: Second Beat follows IDOLiSH7 as they not only struggle to adapt to the challenges of the idol life but also to face their personal troubles, all while continuously meeting the expectations of their treasured fans.

Tenma Matsukaze is a new student at Raimon Junior High. Due to his love for soccer, he decides to join the school soccer team, which gained its reputation after the amazing performance shown ten years earlier in the Football Frontier International, a tournament that hosts the best youth teams the world has to offer. Unfortunately, the once renowned school doesn't have the soccer spirit it once enjoyed. This is primarily due to the fact that soccer in Japan is now controlled by a dark entity known as the Fifth Sector. They alone decide the fate of every match, instructing teams to either win or lose. The actions of the Fifth Sector have beaten down the country’s soccer teams, who no longer have a love for the game. Tenma and his teammates will look to shift this paradigm and fight back against their evil oppressors. Thankfully, they will not be alone in this battle, as they will get help from a group known as the Resistance. Cheer on the boys of Inazuma Eleven Go as they fight the good fight!

Amagi Brilliant Park is a place where everyone takes on the role that is perfect for them. But every once in a while, situations arise that will force staff members to step out of their comfort zone and take on a new role. The goofball employees are soon to realize just how difficult this can be.

Creatures known as Shokujinki have been secretly living alongside humans for hundreds of years. Though they may look like humans, Shokujinki are able to transform into uncontrollable beasts with gigantic claws and consume humans to survive. The equally secretive Kifuuken dojo specializes in killing Shokujinki by cutting off their arms, and is the only force preventing unchecked Shokujinki domination. Toshihiko Momota, the son of the leader of the Kifuuken, is instantly charmed by a mysterious woman named Yuka Kamitsuki. Their relationship is complicated, however, because unbeknownst to them both, Yuka is a Shokujinki and Toshihiko is sworn to kill her. Meanwhile, the Kifuuken is having a crisis of confidence as Toshihiko's brother Kazuma pushes against tradition and tries to modernize the Kifuuken. As emotions are strained and the secrets of both the past and present are revealed, who will live, and who will be eaten?