During one time staying late at work with a colleague, Ishihara bought a few cans of beer to help him stay alert and continue fighting with the work, of course, his colleague also joined in. That was just it, plus accidentally spilling a can of beer on his pants, a romance sparked between the two of them, and even at that moment, a sexual encounter took place in the small office room. After that, there were dating outings and trips for this couple. One special thing is that at each stop on their journey, a passionate love scene happens right afterward, from outdoors, in a tent, to deserted places, and notably the extremely exciting sex scene in the hotel they finally arrived at.