Jack's favourite blood type (to eat) is H-H, but it's insanely difficult to find, and he usually stores it and saves it for a special occasion.
(Why am I suddenly hit with so much inspiration to write blood-type headcannons?? Wtf is wrong with me???)
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Creepypasta Headcannons
FanfictionI've read so many of these headcannon books, so I thought why not make my own?