Mashiro_Yoo
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Recent works
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Beyond the Glass by Mashiro_Yoo
Fandoms: How to Train Your Dragon (Animated Movies), How to Train Your Dragon - All Media Types, Rise of the Guardians (2012)
13 Sep 2026
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Summary
When Hiccup Haddock lands his dream internship at one of the country's largest aquariums, he believes he will finally have the chance to study what he has always loved: the ocean.
What he didn't expect to find behind the glass was the greatest discovery of his life.
Kept as the aquarium's main attraction, Jack is a creature who defies everything Hiccup has learned about marine life. Mysterious, curious, and seemingly as human as anyone else, the merman quickly sparks the young biologist's interest.
What begins as a simple friendship between two different worlds soon evolves into something deeper.
But the more Hiccup gets to know Jack, the more he realizes something is wrong.
Jack didn't choose to live in that aquarium.
And as the two grow closer, Hiccup begins to question just how far he would go to give the boy on the other side of the glass what he desires most:
freedom.
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This is its core by Mashiro_Yoo
Fandoms: How to Train Your Dragon (Animated Movies), How to Train Your Dragon - All Media Types, Rise of the Guardians (2012)
06 Aug 2026
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Summary
When Hiccup Horrendous Haddock III was a child, Jeremiah Overland, ruler of distant frozen lands, came to his father to ask for help. His son and heir had vanished without a trace.
Fifteen years passed, and during an expedition, Hiccup spotted a body washed up on the sand.
But who could it be?