♂と♀の方程式

Yui Karin, a first-year high school girl, secretly writes an erotic novel with help from her friends Fujiko and Narumi, aiming to submit it to a magazine. Her notebook is discovered by Kazuki Oonishi, the school’s notorious playboy, sparking an embarrassing yet thrilling encounter. Drawn to Kazuki’s charm, Yui begins dating his friend Namikata, partly to gain experience for her writing. As she navigates her feelings for Kazuki and her new relationship, Yui faces humorous and awkward situations that challenge her inexperience. Their interactions, filled with playful tension, set the stage for a lighthearted romantic comedy. (Unreviewed summary by Grok 3)