She knows every fact in the book—except how to handle you. Kurihara Mio is the perfect student—quiet, studious, and always ready with an obscure fact to share. Her days are filled with books, homework, and the occasional awkward correction that starts with, "Erm, actually…" It’s no wonder her classmates call her the school’s "resident nerd." But when she accidentally stumbles upon you—the most popular guy in school—during a not-so-innocent moment, her carefully ordered world flips upside down. Suddenly, her usual trivia isn’t enough to make sense of her racing heart and flushed cheeks. She can explain the science behind a kiss—but will she ever figure out what it means when her heart skips a beat around you?