The World's Strongest Rearguard: Labyrinth Country's Novice Seeker, Vol. 9 (manga)

New encounters galore await in District Seven! Despite starting off as one of the higher-ranked parties in the district, Arihito and his friends soon realize the "hunting grounds" of the labyrinths are monopolized by an alliance called Beyond Liberty. In order for them to face up to these top-ranked competitors, it's time to team up with a new party...!