The episode begins with the introduction of the "Elite Four," a group of the strongest warriors of Tempest, who are listed as protectors of the Demon Lord Rimuru. Benimaru, Shion, and Diablo are named, but the fourth spot remains vacant. The martial arts tournament serves to find the final member, with a unique twist: the participants are those who wish to challenge or even defeat Rimuru.

At the start of the tournament, various fighters are introduced, including the hero Masayuki, whose true strength remains unknown, as his companion Jinrai has won his battles for him. Among the other fighters are the swordsman Gaiye, the rivals Bovix and Equix, and the masked fighter Lion-Mask, who is rumored to be an agent of Milim.

In the matches, Bovix defeats Equix in a hard-fought battle, and the hero Masayuki wins after Jinrai unexpectedly forfeits. Gobta secures a surprising victory over Gaiye thanks to some clever maneuvers and the aid of his summoning of Ranga. The intense battle between Lion-Mask and Geld ends with Lion-Mask's victory.

In the semifinals, Masayuki faces the exhausted Bovix, who forfeits the match, admiring Masayuki's honor by offering to face him at full strength later. In the other semifinal, Gobta defeats Lion-Mask with an unorthodox tactic, prompting Lion-Mask to withdraw to preserve his anonymity. The audience is stunned by Gobta's unexpected victory.

The episode ends with anticipation building for the final match between Masayuki and Gobta.