A young man with mildly wavy, short, dark brown hair and narrow russet eyes, Osamu Dazai is known for three things: strategy, intelligence, and proficiency in use of many weapons and/or martial arts. Osamu in fluent in five languages: Russian, French, English, Japanese, and Spanish. With pale, fair skin, yet a body covered in alabaster scars, Osamu is an attractive man by the standards of most of his country. Despite being quite the bachelor, Osamu is unwed and uncourted. He stands at 5'11.