Ai, an office worker in her late twenties, is a hardcore “planner” who believes everything in life should follow a perfect schedule.

Marriage to her live-in boyfriend, Ren, is also part of her carefully constructed life plan.
But there’s one big problem: their sex life has become almost non-existent.

“Am I really okay getting married like this…?”

Even on a trip she plans to “fix” their lack of intimacy, nothing goes according to plan, and Ai sinks into frustration.

That’s when Shunsuke, a younger, handsome, muscular guy, suddenly appears in front of her.
He’s wild and unpredictable, and even after learning that Ai already has a boyfriend, he keeps pushing forward without hesitation…

“Even so, I still like you, Ai.”

A stable future with gentle Ren?
Or the heart-throbbing excitement brought by a younger man who shakes her to the core?

A slightly mature, unplanned love story that portrays the very real romantic struggles of women in their late twenties.