After the events of the 1st series, Fenarinarsa continues to drift from Earth, so the King asks for help from the kingdom, Marinarsa, to send their daughter, Momo (Who is identical to the 1st one) to Earth to regain humanity's faith in their dreams.

Three unaired episodes.

It is the year of 2014, Shibuya is independent from Japan, and it becomes an independent nation. It is a town of chaos where only young people are living. The life necessity, such as electricity, water, and food are transported by the pipelines out from the Shibuya. The pipelines are running like cobweb in the sky, the young people in Shibuya looked like bugs trapped in the cobweb. In this city, there are people called "Prayers". They earn money by the battle of music. They turn music into electric signals and inject them into brains, and destroy opponents' mind and bodies each others. Originally created as 4-episode-OVA, it was canceled after 2 episodes.

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.