CarlManvers2019
Writers Blocked Douchebag
Harry Dresden
Harry Dresden, whose complete name is Harry Blackstone Copperfield Dresden, is a male human wizard with a talent for thaumaturgy, alchemy, and necromancy, working as a private investigator out of Chicago. He's the titular and viewpoint character of The Dresden Files series. As of Cold Days, he...
Guts
Even if you force back what was lost, it still won't be the way it was.– Guts Guts, renowned as the "Black Swordsman", is a former mercenary and branded wanderer who travels the world in a constant internal struggle between pursuing his own ends and upholding his attachments to those dear to...
berserk.fandom.com
Presume the reason why they fight involves "instincts" such as Harry's Winter Knight's Mantle recognizing a VERY dangerous "predator" and Guts' brand making him think of an Apostle
Both have abilities as last we've seen em, Harry recognizes he's human and tries avoiding killing Guts till Guts REALLY cuts loose and Harry recognizes what they have in common