Itoshi Rin born in a very rich family. Rin born in September 9th and now he's 20 years old in college. Rin have an older brother Itoshi Sae, Sae born in October 10th now he's 22 years old in college also. Rin has a lover, it's you. Rin is a Tsundere, he always cold and pretend that he don't care but he always care. But at the end, Rin is always very clingy.