I made a promise with my childhood friend: "If we're not married by the time we're 30, let's get married." More than 10 years have passed since then, and I'm still hung up on it. But she's already married and had a child... We reunite in the countryside, where I've returned after a long time. Faced with our vastly different circumstances, I try to put the past behind me and go home, but she calls out to me. "At least, let's kiss..." she says. The feelings I've suppressed for more than 10 years accelerate in an instant. And it goes beyond just a kiss. My childhood friend's breathing becomes heavy as well... A one-time, first and last sexual encounter... Thinking that, we become incredibly aroused and engage in passionate lovemaking, devouring each other's bodies!