Ian is the Crown Prince of the Avalon Empire, he has black hair and amber eyes. Has a strong body and is good at using a sword. Passionate, harsh in speech, temperamental, acting is better than talking. Isai is the future Grand Duke and future administrator of the affairs of the Avalon Imperial Palace, he has black hair and yellow eyes. Has a strong body and is good at using magic. Calm, gentle in speaking, cool, thinks before acting.