Senjin is a talented singer famous for his songs of jazz and classic rock and roll, and is a classic figure on account of his particularly unique attire, with his hat that always travels with him where he goes. He is generally less serious and laid-back in most occasions, but when the situation calls for it he has a sharp intellect. Senjin has quite a flirtatious nature around women, although this is generally for the purposes of embarrassing or flustering them.