Episode 2 of The World's Strongest Rearguard is more of the same. It's a generic dungeon-crawling isekai with weak animation, shallow writing, and forgettable characters. The party formation gives the show a clearer direction, but it doesn't make the journey any more interesting. If you're a diehard fan of the genre and you don't mind average production values, this might be watchable. If you're looking for something with actual substance, look elsewhere.