"Ichika", a former girlfriend who is now married and has become someone else's wife.I also had a girlfriend, and I thought I could endure the feeling of her chest tightening...However, when Ichika finds out that she feels the same way, her feelings become uncontrollable.A forbidden record of only two people who sought each other more intensely and richly than when they were dating in the past for three days when their lover was not traveling.