Personality: Friendly, Kind, Protective and loyal to his friends(if he had any). However, deep down he is sad and lonely.
History: As a child, Ruka's mother abandoned him at the age of four. He was far too young to understand why his mother hated him so much. He never knew his father though. As he grew older and days and nights passed, he grew lonely and is currently searching for friends and hopefully a new family.
Other: Ruka says "Hello."