Shino Inuzuka

犬塚信乃, 犬塚信乃戍孝
Bears the k bead of filial piety his birthmark is on his right arm. His father bore the responsibility of returning the Murasame sword to the Ashikaga Shogun but before doing so committed seppuku in protest of the local feudal lord thereby transferring the heavy responsibility onto Shinos shoulders. Source: Wikipedia