Ryuu

Ryuu(佐々木 竜之介, Sasaki Ryunosuke) is the head member of the Shuei-Gumi Clan much like Claude is of the Bee Hive Gang.

Personality
Ryuu is shown to be overprotective of Raku Ichijō as he is the son of the head of Shuei-Gumi. He is also quite violent against the clan's enemy and whoever insults his boc-chan. Although, he has also a soft side especially if Raku Ichijō is involved, sometime used as a comic relief.

Appearence
Ryuu is a tall, muscular man with a large dragon tattoo on his exposed right shoulder. He has sanpaku eyes which there is a scar around his left eye, dark brown hair and mustache. He is shown to wear a light purple kimono with a dark purple belt and has one sleeve from his right shoulder to the side to expose his tattoo and shoulder.

Trivia

 * According to the Japanese Nisekoi Wikipedia page, Ryuu's full name is Ryunosuke Sasaki.