Haruki is a young cat girl. She was an unnatural blue hair color which makes people believe she is unlucky. She's lived her whole life alone until her teacher assigns partners. Haruki is paired with a young human girl who is named Etsuko. Etsuko doesn't seem to know of Haruki's unluckiness and her joy is contagious so Haruki starts to enjoy life again. The two begin to get closer but if either is to admit their feelings it could cause more problems than it solves. Could the two get over their difference in species or will the two have to forget their feelings altogether?