Kakinouchi Takuma (Nomura Shuhei), a high school student, suffers from a heart ailment and has been in and out of hospital. He and childhood friend Taneda Mayu (Sakurai Hinako) promised that they would marry each other when they were kids. However, Takuma later learns that he will not be able to live to be 20, and decides to distance himself from Mayu so that he will not cause her grief. and Shunpei to buy their marriage license for 60 million yen from her, and decides to rebuild the restaurant as its proprietress…

Maeshima Kaori (Triendl Reina), an interior designer, is respected in her company but has been carrying on a secret affair with her boss Fuyuki (Mashima Hidekazu) for years. However, it is a doomed romance. Fuyuki is a married man and there is no hope for a future with him, but Kaori is content to let it be and hides her pain. One day, Shinonome Haruto (Sakurada Dori) appears in front of Kaori. He is a young designer who was just transferred from the New York branch office. Kaori’s indiscreet interlude with Fuyuki was witnessed by Haruto at the office. Meanwhile, Kaori and Haruto end up working together as partners at work. Her destiny begins to change as a result of her meeting Haruto and she unknowingly falls into a trap.

Detective Tokiya Rekihiko (Sawamura Ikki) is an excellent detective in Kyoto. While chasing a suspect, he falls into a water storage pool at an abandoned factory. He wakes up in a hospital room, stunned that he cannot remember anything from the last 20 years. Although he is 51 years old, he cannot recall anything past the age of 31 when he first started working as a detective. He is a divorcee, but he does not remember his ex-wife. His personality also changes, once confident but now meek and timid. His sense of justice is still strong. Rekihiko Tokiya resumes work as a detective, but he deals with cases differently than in the past.

21-year-old Matoba Ataru (Sugisaki Hana) begins work for an event company as a dispatched worker. This is her first real job. She goes to work wearing a knit hat, sunglasses and a long coat. She is happy to have the various work experiences and she works pleasantly. Ataru also has a special ability. When she makes eye contact with someone, she can see that person’s troubles or indelible memory. With her special ability, Ataru Matoba solves troubles of people she works with.