User blog comment:Roboartitec/Guessing what's Merlin's sin/@comment-3544775-20130106111643

Considering we know already of 4 them, it leaves Pride, Gluttony and Lust as options. And I usually connect lust to women, so that would be my guess. Since the other's two also don't strike me much as Sins of Lust.

Cano/Lucano or whatever will be his name (the old guy), the most obvious choice for him is Pride.

And Gowind/Gowihe or whatever will be his name (the helm guy), is the second biggest in the group, and since King is not Gluttony, it fits this guy the most.

Still the author can try to escape the visual appearance and go again with their personality, like he did it with the other's.