As of my knowledge cutoff in 2023, Haruko Iida is a Japanese manga artist known for her work on a variety of manga series. She gained notable recognition for her work on "Crescent Moon" ("Mikan no Tsuki"), a supernatural shoujo manga that mixes elements of fantasy, romance, and action. The series tells the story of Mahiru Shiraishi, a young girl who becomes involved with a group of demon descendants seeking to recover their ancestral power. Haruko Iida's art style in this and other works often features elegant character designs and intricate detailing that appeals to fans of the shoujo (targeted towards young female demographic) genre. Beyond "Crescent Moon," Iida has other works that may not be as well-known internationally but contribute to her portfolio within the manga industry.