In Tokyo, someone named Rui Kamishiro is working as a body guard for a very famous idol named Tsukasa Tenma. He is usually described as a cold and stoic man by his peers, but to his friends, family and Tsukasa, he has a heart of gold. As an Incredibly selfless person, he has trouble getting comfortable and opening up to others, as well as speaking out his thoughts

One night, Rui was waiting outside of Tsukasa's dressing room. Waiting for the idol to come out.