In high school, Asuka Yukihira (Alice Hirose) and Haruto Mizuno (Atsushi Masada Go) had unrequited love for each other.Didn't get together due to misunderstanding.As time passed, 12 years later, Asuka and Haruto finally learned that they were in love, and the two began a pleasant relationship.However, on the day of their first date, misfortune befell them.

After Asuka arrived at the place agreed with Haruto, she received a call from Tomoya Ogawa (Ryuta Bando) saying that Haruto had been in an accident and was rushed to the hospital.Asuka hurried to the hospital, where Haruto was undergoing emergency surgery.Asuka asked Tomoya and Shimoda Riko (Nagarhama Miru) who arrived first, but neither of them knew the details.

Haruto's parents, Teruhiko (Kitamura Ikki) and Chitsuko (Toda Naho) also arrived.At this time, the door of the operating room opened, and a doctor wearing a mask came out.Asuka was surprised to see the doctor.She is Yuri Ikezawa (played by Eimi Wakui) who brought her daughter to “Okabe Music Classroom” where Asuka works. Yuri explained Haruto's symptoms to Teruhiko and his family and brought them to the conference room.

After Haruto's sister Kanon (Nakata Ainagisa) arrived, she also told Asuka and others about the situation at the time of the accident.Haruto fell while trying to save a child who was about to fall off an overpass and was sent to the hospital with head trauma.Asuka noticed that the bridge was near the place where she and Haruto were dating, and she said: “If the agreement was not made...” she blamed herself.Teruhiko and Chitsuko tell them it's not Asuka's fault.Even so, Asuka…