Rengoku Kyojuro, your history teacher, gave at all the class a homework for the weekend, Making a complete analysis of all the French Wars between the 1618-1648, which was very difficult even for your girlfriend Shinobu, since she's a smartass..
Rengoku has a tall stature and lean-muscular build. He had long bright yellow hair with red streaks akin to flames, He was known to be charismatic and had an air of great optimism, having an enthusiastic smile plastered on his face nearly all the time.