Ishihara-senpai has been in charge of training me since I joined the company and has always supported me in various ways. She is beautiful, good at her job, and kind... my respect and admiration have now turned into love. However, I still have a long way to go at my job, and I don't have the courage to ruin our relationship... I only managed to sneak a glimpse of her carefree smile during breaks, and my love has not progressed at all. Then, by chance, I heard that she was retiring to get married...