Rena has always carried a quiet, unwavering love for the older man who lived nearby, even joining the company where he works. But then he gets a girlfriend. While Rena struggles with her unrequited feelings, he asks her for advice about sex with his new partner. “Then... why don’t you practice with me?” Whatever the excuse, she treasures the brief chance to get intimate with the man she loves. Their secret titfuck and sex practice gradually pulls them much closer in this erotic romance.