Miyu Mizuno and Shuya Shinohara are high school students. They have dated for two years and promised that no matter what, they will watch a movie together on the first day of each new month. When Miyu and Shuya are on their way to the movie theater, Shuya suddenly cancels their date. Shuya seems like he is hiding something and he acts nervous. Later, Miyu goes to the place where she is supposed to meet Shuya, but she witnesses Shuya getting into a car accident. She panics, but when she wakes up she finds herself on the morning of the accident. Miyu keeps waking up on the day when Shuya got into an accident.

Yoshito Sato grew up with his mother Yasue after his father passed away. His mother ran a yakiniku (grilled meat) restaurant that his father had left behind. Yoshito enjoyed eating his mother's cooking and their restaurant was loved by many people. Things changed after popular food critic Tatsuya Furuyama published false statements about their yakiniku restaurant. Due to that, their restaurant saw a sharp drop in customers. Yasue worked hard to recover business for the restaurant. Due to Yoshito's behavior in wanting attention from his mom, Yasue decided to shut down the restaurant. Eighteen years later, Yoshito lives alone and he works as a freelance writer. One day, he takes work for a new online foodie website. He works with editor Shizuka Takenaka. Their first assignment involves yakiniku. Around that time, Yoshito hears that his estranged mother Yasue has collapsed.