On a day of sudden downpour, a peculiar excitement awakens from the nipples and lingerie sticking to the wet skin. Wet bra, see-through panties, wet see-through nipples!! The feeling of them clinging to the bare skin and showing through is irresistible!! See-through lingerie has a different kind of eroticism from being naked… Scene 1: On the way back from a drinking party, caught in a sudden downpour. Decided to take shelter in a nearby colleague's (male) room until the rain stops… Scene 2: Yuna was caught in a sudden downpour while out. Tried to enter the room but there was no key. Since she might catch a cold, she sought help from a familiar neighbor… Scene 3: A tutor. After finishing the lesson and leaving, she was hit by sudden rain and returned. The one-piece dress fits tightly to her body and looks somehow erotic. Since she might catch a cold, she decided to kill time in the student's room until the rain stops…