The Fertility Club is created to increase the number of births in a world where the government wants highschooler to have babies. Hence, they created the Fertility Club, a club where young women come together to find potential fathers for their future babies. The main character in this story is a regular high school student who gets chosen by two of his classmates, Umi and Aika. Umi is beautiful with B90W59H95 measurements and likes to wear make-up and accessories. She has a of aura of “gyaru”. Aika, on the other hand, is a stunning beauty with B103W60H88 measurements. She acts like an older sister to everyone, and her charm awakens the main character’s interest in her. He needs to impregnate them by filling their stomachs with baby’s juice. Happy segs harem life with gyaru begins!