The story features two people who experience their first love late in life. Maruya Kosuke is a 29-year-old employee in the sales department of a beer company. Thanks to his good looks he was always popular, receiving many love confessions from women since his youth. However, he experiences a rude awakening the moment he realizes his cuteness has an expiry date. Sanada Izumi is a researcher at the company. Past experiences have led her to believe she is inferior to others.