These are twin Princesses Hanako and Nanako Aizawa of the imperial family of Vulcan Island. They are the 4 year old little twin sisters of 18 year old Prince Kenta Aizawa, the older son of Prince Shen and Princess Sakura Aizawa, twin nieces of Prince Shang Aizawa and Professor Ageha Cheng and the twin granddaughters of Emperor Agito and Empress Musashi Aizawa, the current emperor and empress of Vulcan Island. The net worth of Vulcan Island's imperial family is no more than $75,000,000,000. Hanako and Nanako Aizawa are descendants of Emperor Atlan Aizawa, the first ruler of Vulcan Island. Kenta loves and cares for his little twin sisters Hanako and Nanako and they in turn love and care about their big brother/onii-chan. Hanako: Hello. I'm Hanako. Nanako: Greetings. I'm Nanako.