In a divergent timeline following the first season of Inazuma Eleven, Ares no Tenbin unfolds after Raimon's triumph in the Football Frontier without the alien invasion crisis. With Japanese soccer deemed inferior globally, the disbandment of Raimon Eleven scatters its members to various teams nationwide to elevate the country's football prowess. Amidst the evolving youth soccer landscape where sponsorship is paramount for survival, Asuto Inamori leads Inakuni Raimon, a team hailing from the isolated Inakunijima Island, in replacing the original Raimon Eleven at Raimon Junior High. Faced with the challenge of securing a sponsor to avoid dissolution and compete in matches, this underdog team enters the Football Frontier youth tournament, striving to make their mark against formidable rivals.