Season 1: Offers one of the most original takes on Shonen, instead of being about a boy looking to get stronger or take over the world, we have a story about a world where humans live in constant fear of suddenly exploding and turn into flaming monsters.
Season 2: An already impressive anime taken to the next level, giving characters layers of much-needed development, answering important story questions, developing a rich world, and incredible action sequences.
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