Suddenly, heavy rain hits while on a business trip with my busty female boss, Fumika. With no way to get home, we end up sharing a hotel room... A man and a woman, it's impossible for something not to happen...! Her sex appeal and her wet, transparent mega-boobs drive me crazy... As the rain continues to fall, we cross the line between boss and subordinate, overlapping our wet bodies and having sex over and over again. "Hey, let's just blame it all on the rain and take a day off from work." Rain, love juices, and juices mix together, and we continue to immerse ourselves in sex until the morning.