Mizuhara Ritsu loves both the 2D beauties of eroge and elementary school students. Also, his friend Bungo is jealous of how he seems to be surrounded by cute girls--there's his little sister Miri, his tsundere childhood friend Akari, and kuudere Hatori.One day, Bungo tells Ritsu about an anonymous blogger who writes about the future, and whose vague online self-description seems to match Ritsu. While initially assuming it to be a prank, Ritsu ends up letting his actions be guided by the blog's horoscope-like hints for the upcoming day...