Ashita no Kimi ga Motto Suki tells the stories of men and woman whose love has worn off.

Ryo Matsuo works at a gardening company. He thinks women are annoying. At a client's office, he meets Akane Satogawa who works as a CEO's secretary. She is admired by the male employees due to her attractiveness and smarts, but, due to a bad experience, she is not interested in finding love. She only has sex with married men. A new male employee, Haruto Kinosaki approaches Akane Satogawa.

One evening, Ryo Matsuo's boss asks him if he is interested in marrying his daughter Ayaka Tanno and eventually taking over the gardening company.But, Ryo Matsuo is embarrassed by the suggestion. He views Ayaka Tanno like a sister. Meanwhile, Kaoru Tanno works at a construction site during the day, but works at a girl's bar at night. She has lost her sexual identity. While working at the girl's bar, female customer Azusa Kuroda approaches Kaoru Tanno.