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Solo level in my opinion is over hyped it's no more than Sword art online with the same op black haired loser who gets really powerful and all the women simping for him and by the end is essentially a legend in their own respective universes but ones Japanese the other is Korean and at least kirito took time to grow and develop almost spending several episodes before growing more powerful but Sung Jin Woo almost every episode in almost every fight is pulling something new out of his ass and it's like oh well it's just the system giving him these things and as for world building well I think frieren does that better yes it's a slower story but not every story needs to rush to the end plus solo leveling it's Manhwa has been over since 2021 meaning with how quickly the anime is getting new seasons unless the pull an AoT with it then I'd say it will be finished airing in maybe 4 to 5 years as for frieren manga is on hiatus but has plenty of seasons of content that it can release before it catches up with said manga but haitus does not mean it over or cancelled just look at HxH the frieren manga has 140 chapters so you can definitely get more out of it over time but a rushed ending or even a rushed adaptation will be the downfall of some series more than taking your time plus eventually a show like Solo Levelling will die down in hype and stagnate especially when people get exhausted from how much is being released and how many time the have to see Sung in woo get another power up out of no were now this is just my opinion but hey there's a reason why one piece is still going strong and is said to have some of the best world building and that's because oda takes his time to flesh out his world giving his characters power ups when they deserve it after showing us the characters learn and grow from every interaction and he's not one to rush to the end because he now that a rushed ending can lead to a bad and unsatisfactory ending