Ryou Shiranui

There is a fair bit of mystery surrounding Shiranui's past prior to him enrolling in Butei High. However his peers believed that he had experience handling a gun before entering Butei High; the reason being because in the first term of his first year he teamed up with Kinji Tohyama under the supervision of a year student to stop a bank robbery. During the raid he entered the building calmly and efficiently took out the leader of the armed assailants by shooting him in both the legs without even breaking his signature smile.