The World's Strongest Rearguard: Labyrinth Country's Novice SeekerThe World's Strongest Rearguard: Labyrinth Country's Novice Seeker ; World Strongest Rearguard: Labyrinth Country and Dungeon Seekers ; World's Strongest Rearguard - The Novice Seeker of Labyrinth Country ; 世界最強の後衛 ～迷宮国の新人探索者～ ; 世界最强后卫~迷宫国的新人探索者~ ; 世界最强后卫～迷宫国的新人探索者～ ; 세계최강의 후위 ∼미궁나라의 신인탐색가∼