Craif Inc. (Location: Bunkyo-ku, Tokyo, CEO: Ryuichi Onose, hereinafter referred to as “Craif”) has entered into a joint study agreement with Maruho Co., Ltd. (Location: Kita-ku, Osaka, President & CEO: Atsushi Sugita, hereinafter referred to as “Maruho”). With the conclusion of this agreement, Craif and Maruho will begin a joint study to search for immune disorder biomarkers utilizing urinary miRNA.