Ayaka (Shiho Kato) is deeply in love with her senior colleague, Hiroko (Kanna Mori). Both mistakenly believed the other to be straight, but thanks to Ayaka's relentless pursuit, they finally started dating! One year later, Ayaka has moved into Hiroko's place, and their cohabitation has begun. Hiroko, who cherishes Ayaka so much, has vowed never to hurt her and decided not to make any hasty moves, entering an ultra-doting mode! Meanwhile, Ayaka is feeling a vague sense of unease because Hiroko still hasn't made a move. Misunderstandings pile upon misunderstandings, leading the two astray. They end up heading to Hawaiians for different reasons…!? The junior who never gives up × The senior who can't be won over The ultimate mismatched girls' love romantic comedy!!