"Your big boobs that are slightly transparent in the rain turn on my switch ..." Wet uniforms, transparent underwear, and a favorite of the perverted janitor, a soaked busty schoolgirl! A man who is lustful for a girl student who gets wet in the rain is soaking wet on the night of a typhoon, aiming for "Aika" who has difficulty returning home! "My life is aching when it rains ..." Every night when it rains, Aika's feelings change and she gradually waits for it to rain. After the heavy rain after school, I'm going to commit a crime today ...