Seiryo Osen is a citizen of the Land of Rain and a member of the Osen Family. He currently serves the land of Rain as a chunin ranked shinobi, though many of his superiors have noted that his lack of promotion to jōnin is not because of his lack of skill, rather they fail to see the nessecery qualities of a leader in him. Much of this should be noted as being down to his clan's well-documented history of sadomasochistic tendencies, which practically disables him from not entering in combat, causing some to label him as reckless. Behind the layer of insanity that appears to so many however, there lies a mind of calculating precision, capable of experiencing more emotion than many would believe. Now, armed with his natural drive towards suffering, his heritage, and his desire to make his onc