Tie-in anime linked to the Idol Land PriPara smartphone game.

Five hundred years ago, the fantasy world of Alneath was torn apart by a war between magically gifted immortals and mortals armed with magical artifacts. The conflict came to an end when mortals' hero, Gram, slayed the Demon Lord Veltol Velvet Velsvolt. In 2099, the world looks a bit different. Alneath and technologically advanced Earth have fused in an event known as Fantasion. Immortals have been hunted down to near extinction, and technological implants called Familia allow mortals to use magic. As the new world slowly recovers, Veltol's vassal Machina Solege resurrects him in Shinjuku, a techno-magical city constructed in the middle of devastated lands. However, Veltol's magic is severely weakened, and his former ally Marcus has betrayed him. To regain his fame and magical abilities, Veltol follows the advice of Takahashi—Machina's friend and a professional hacker—to start an unusual career: live streaming. His sharp tongue and comically poor gaming skills quickly secure him followers, but to dominate the world once again, Veltol must first uncover Shinjuku's secrets and thwart Marcus' vile plans.

The next phase of the controversial Blue Lock project is underway with the candidate pool being dwindled down to just 35. Out of the remaining strikers, only a select few will be chosen to play in an upcoming exhibition game against the current U-20 Japanese soccer team. Playing in this match comes with a caveat: winning will grant the players the right to represent the nation as the new U-20 team, but losing will bring an end to Blue Lock in its entirety. Among the ones left in the running is Yoichi Isagi, who is coming to terms with his own abilities. To further complicate matters, the six best players in the pool have already been named to the starting lineup and the remaining 29 will have to duke it out to claim a coveted spot. Each candidate must select a top six pairing to team up with for the selection to prove their competence. But if this mishmash of strikers wants to overthrow the current U-20 team, they will need to find a way to combine their playstyles effectively.

After the intense quarterfinals, the U-17 World Cup competition has been whittled down to four formidable teams. Standing between Team Japan's quest for international glory is the nine-time tournament champion, Germany, and their star-studded team, pro player Jurgen Borisovich Volk at its helm. With both the momentum and the crowd's favor on the side of their opponents, Japan faces an uphill battle. Determined to avenge an earlier loss, Japan sends seven of their best—including team captain Houou Byoudouin—to challenge the German national team. But trying to reach the finals for the first time in Japan's tennis history may cause even these fearless players to crumble under mounting waves of pressure as they venture into uncharted territories.