Dreaming of opening a restaurant in Tokyo, aspiring chef Takao Shibata moves to the city, passionately dedicating himself to his craft every day. His neighbors, the Hirose couple, have always supported him. However, he has one major flaw—one he's completely unaware of: he's a complete taste idiot. With a major cooking competition approaching, he's suddenly confronted with this truth by her, causing Takao to question his entire purpose and sending his confidence into turmoil. Determined to help him in his final 24 hours, Nanami Hirose vows to stand by his side. Leaving a deceptive letter for her husband, her actions begin.