A sudden downpour awakens a strange sexual fetish for nipples and underwear that stick together after getting wet... Wet bras, see-through panties, wet and see-through nipples!! The feeling of them sticking to bare skin and showing through is irresistible!! See-through underwear has a different kind of eroticism to being completely naked... Case 1: On the way home from a drinking party, she is caught in a sudden downpour. She decides to take refuge in a nearby colleague's (male) room until the rain stops... Case 2: Yuuna is caught in a sudden downpour while out. When she tries to get into her room, she finds that she doesn't have the key. She's worried she'll catch a cold if she stays there, so she asks for help from a familiar neighbor... Case 3: A private tutor. She finishes her studies and goes home, but comes back caught in a sudden rain shower. Her dress fits her body perfectly and is somehow erotic. She's worried she'll catch a cold if she stays there, so she decides to kill time in her student's room until the rain stops...