Noel Koga is a character from the anime Rainy Cocoa in Hawaii. He is a member of the Rainy Cocoa Fan Club and is the younger brother of Shion Koga and the twin brother of Nicolas Koga. Noel has slate gray hair and sea-green eyes. He is typically seen wearing a white collared shirt with a small breast pocket that he leaves untucked, which gives him a slightly unkempt appearance, along with a loose dark green tie. In the series, he appears as a supporting character, interacting with the main cast in the Hawaiian setting. His specific personality traits, motivations, and personal development are not extensively detailed in available sources, as the character has limited screen time and narrative focus. His key relationships are primarily with his brothers, and his role revolves around being part of the fan club and supporting the group dynamic. No notable abilities or special skills are attributed to him in the material. Overall, Noel Koga is a minor figure within the Rainy Cocoa in Hawaii story, defined largely by his family ties and casual aesthetic.