So... is Merc Storia: Mukiryoku no Shounen to Bin no Naka no Shoujo finished or not?
It is a bit ambiguous in this case.
Why?
All detected relations are finished, but we could not confirm the source content in MangaUpdates. Please check the release order section for a complete list of relations.
Watching Order (by release date)
Here you have all the anime relations we detected ordered by release date, so you can see the reason for this status in context and also use it as watching order.
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Synopsis
Merc Storia: Mukiryoku no Shounen to Bin no Naka no Shoujo tells the story of Yuu, a young healer-in-training who has a unique talent: he can befriend monsters.
His life takes an interesting turn when he meets Merc, a mysterious girl trapped inside a bottle.
Driven by Merc's desire to recover her lost memories, Yuu and Merc set out on an adventure across a world where humans and monsters live side-by-side.
Their journey will likely lead them to encounter various challenges and meet new characters as they unravel the secrets of Merc's past and the world around them.