Ryu Yamagami

Ryu Yamagami (山上竜, Yamagami Ryu) is a main protagonist of the Shakugan no Shana series. He is an author and a Flame Haze of the title " Dragon Swordsman of Flames" (炎の竜剣士 Honoo no Ryu Kenshi). He contracted Dragidorah to fight the Crimson Denizens as Kamen Rider Crimson (仮面ライダークリムゾン Kamen raidā kurimuzon) in hopes to of protecting the memories of others close to them.

Appearance
Ryu is a boy with disheveled black hair and gray eyes who wears a blue scarf with white lines.