Kid and killer have shown their CoO before, when they sensed Luffys awakaning immediately.
So there is simply nothing saying they wouldn’t sense Saint Shanks either, or you want so say Saint Shanks haki output was massively weaker then Luffys unconscious one.
I guess it was simply not shown since the whole Kid-Saint Shanks-Story is still unknown and oda keeps it for a later plot.
So there is simply nothing saying they wouldn’t sense Saint Shanks either, or you want so say Saint Shanks haki output was massively weaker then Luffys unconscious one.
I guess it was simply not shown since the whole Kid-Saint Shanks-Story is still unknown and oda keeps it for a later plot.





