1. Episode 1
Track and field hopeful Daiki grows close with Rio, a student aiming to attend university in Tokyo, until a fateful event pulls them apart.
Dearest — Season 1
An elite businesswoman becomes a material witness to a murder somehow connected to a missing persons case that occurred in her home town 15 years ago.
2. Episode 2
Daiki questions Rio about her connection to the deceased Akira. Fourteen years earlier, Rio has difficulty fitting into her new family situation.
3. Episode 3
Rio tells Daiki about the night of Akira's murder. When Sanada Wellness receives a menacing threat, Rio refuses to let it get in the way of work.
4. Episode 4
Daiki asks Rio about a suspicious man and hears Kase's alibi. A slanderous article appears online and causes problems for Rio at Sanada Wellness.
5. Episode 5
Daiki tries to get information about the past from an old member of the track and field team. Faced with a difficult truth, Rio must take bold action.
6. Episode 6
Rio worries about Yu and later deals with some tough criticism. Kase notices something strange when analyzing the video of Yu and Akira's fight.
7. Episode 7
While Rio and Yu try to move forward with their lives, Shiori Tachibana relentlessly pursues answers about the Sanada Group's wrongdoing.
8. Episode 8
The discovery of a body leads Rio to give a statement to the police about the victim. As suspicions turn toward Goto, he disappears without a trace.
9. Episode 9
The police narrow their investigation thanks to the custom pen. An article appears linking the Sanada Wellness donation scandal to the recent death.
10. Episode 10
Rio must make a difficult decision as the truth comes to the surface, tying together the events of 15 years prior with the recent murders.