A Condition Called Love Hotaru Hinase is a first year high school student who appreciates his family and friends above all. Unable to understand romance, he decided he would be satisfied life without the experience of falling in love. While Hotaru spent time in a cafe with his close friends, he witnessed the tireless separation of a handsome honorary student, Hananoi. Facing him sitting alone in the snow on his way home, he extended his umbrella to him with a gesture of kindness. The next day, Hananoi appeared in the Hotaru class, asking him to be his girlfriend. Although rejected, Hananoi attached tightly on the side of Hotaru, taking selfless action in the hope of pleasant. Hotaru began to feel the emotions that he had never felt before. Believe that emotions -this emotions can develop into love, Hotaru agrees to date Hananoi. 花野井くんと恋の病