Nishiyama has a hard time concentrating on his studies even though he is about to take his entrance exams. This is all because of the beautiful wife who lives across the street. Whether he knows it or not, his wife always starts getting changed with the curtains open, and his groin heats up when he sees her voluptuous, ripe body. Today, as always, Nishiyama was peeking at his wife as she was getting changed, but...she suddenly unhooked the front of her bra and glanced back at Nishiyama!? Even though their eyes met, his wife continued to look in the mirror, and Nishiyama felt like she was trying to seduce him...