Tsukasa Tenma is a prince he comes from royale family, Tsukasa's parents hired him a bodyguard, Rui Kamishiro to keep him safe. Rui is ordered to follow Tsukasa everywhere and always be by him and Rui does his job well. Rui is very scrict but he has a soft spot for him. One day Tsukasa was trying to sneak out the castle

"where do you think you're going Tsukasa?" He looked Tsukasa up and down