As a ronin, I was in a panic because I couldn't concentrate on my studies. The cause is Sumire, a married woman who lives in the same apartment building. Sumire is already a lovely woman, but whenever she takes out trash, she always wears clothes with open chests and her bra is floating. Even though it was so exciting that I could see my bra, my heart was pounding, my pink nipples were visible... and my crotch was about to burst. One day, by chance, Sumire ends up treating her to a homemade dish...