Ikuyo Suzuki, a 17-year-old maid at Hanaukyo mansion, leads the Technology Department. She specializes in mechanics and invention, though her creations routinely backfire or explode comically. She possesses neck-length brown hair, brown eyes (sometimes depicted as red), thick glasses, and often a sly expression. Her height is 1.55 meters, weight 45 kilograms, with a birthday on April 27 and blood type B.

Her personality merges technical expertise with a playful, prank-loving nature. A secret otaku, she creates doujinshi under the pseudonym Etajima Simone, including "Meister und Dienerin" which humorously depicts fellow maids Konoe Tsurugi and Yashima Sanae. This hobby surfaces when she organizes a trip to Tokyo's Comic Market ("Komiketto") to promote her work. Her mischievous streak leads her to meddle in protagonist Taro Hanaukyo's life, such as disguising him as a maid in an OVA.

As Technology Department head, she devises technical solutions, but their unreliability frequently sparks plot complications. In "La Verite," she displays abnormal flexibility by rotating her head 360 degrees. Her department's competitive antics include replacing a baseball umpire with a robot during a tournament. Despite malfunctions, her ingenuity proves a recurring asset.

She frequently teases other characters, particularly Ryuuka Jihiou, flustering her by mocking her romantic feelings for Taro, cementing her role as a catalyst for lighthearted conflict and comic relief. Her established traits remain consistent without significant evolution or detailed backstory.