Go! Go! Loser Ranger! manga volume 6 features story and art by Negi Haruba, the creator of The Quintessential Quintuplets.

The last day of the final exam that will decide the fate of the Ranger recruits has taken a dark turn at the unexpected appearance of the boss monster, Peltrola. With the sudden intervention of the Blue Keeper, D now finds himself stuck between a Dragon Keeper he despises and one of the bosses who betrayed him! Just what is D fighting for; in the end, who will he fight for? And who will survive the final exam?