The fifth installment of the series features the adorable, voluptuous little sister! This time, it's Mika Aoyama, weighing in at a record-breaking 140 kg—the heaviest sister in the series yet. Her overwhelming figure boasts triple-digit measurements in all three areas. Gentle-hearted yet incredibly strong, she effortlessly carries her big brother in a princess carry before giving him a blowjob. The fun continues as her older sister, who doubles as a masseuse, joins in for some lesbian play. Her thick thighs and muscular arms are a sight to behold. Despite being toyed with by her older siblings, Mika maintains a cheerful smile while dominating them with her sheer size—truly a masterpiece that captures the essence of the series.