losing a friend is the hardest thing

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Prologe :
We're in the same situation we know from the manga/Anime.
Shinya was about to confess he's an ajin when he got interrupted by a group of ajin hunters.
Yuusuke got shot as he told Shinya to run. Shinya his ibm flooded and killed all men standing.
But it healed one person. Yuusuke he's wounds where gone instantly.

Well let's start from here .....