Rin has always been sick. He has always kept it hidden, never wanting his friends and brother to worry. As the symptoms get worse, only one person notices.

Rin is given the duty to keep an eye on Amiamon in Mephisto's absence. During this impossible task, Amiamon tries to figure out the ways of a human while teaching Rin how to better control who he is as a demon. How will the two connect and fare while exploring human "activities"? AmiamonxRin Please Read. My summaries are just bad.