Adapted from the hit Korean webtoon "Romance 101" by Namsoo, it tells the story of Ozaki Mako, a perfectionist college student who plans every minute of her life, as she attempts to squeeze dating into her bustling schedule. In hopes of pursuing her crush and senior Sakurai Yuma, she joins his university club and meets Yuma's best friend, Shimizu Eita. Mako navigates the matters of the heart and what it really means to like someone.