The age of 18 is a significant threshold in the series as players transition toward professional adulthood:
Official character profiles reveal that Sendou, the ace of the Japan U-20 team, is also 18 years old (a 3rd-year high school student). Content Themes and Lessons BLUELOCK 18
Volume 18 kicks off the high-intensity match between Bastard München (Germany) and FC Barcha (Spain) . The age of 18 is a significant threshold
It highlights Meguru Bachira's evolution and his new "Gingamino" style of play as he leads FC Barcha. The official cover for Volume 18 features Benedict
The official cover for Volume 18 features Benedict Grim , a key member of Bastard München. Anime Episode 18: "The Stage for the Protagonist"
Isagi, Nagi, and Barou face off against Chigiri, Kunigami, and Reo in a 3v3 match.
In the first season of the anime, Episode 18 is a fan-favorite that focuses on the arc: