Kaori Imaizumi

Sana Ikegami (Yuri Nakamura), 38, who works as the editor-in-chief of a popular magazine, prioritizes her work and her own time over romance. She has a perfect routine for machine pilates, a particular diet, supplements, and beauty treatments, and relieves her loneliness with a sex friend...she leads a fulfilling life. [Episode 6 of the miniseries "The Borderline Between Friends with Benefits and Lovers"]

One day, 26-year-old Toko Tanabe(Seina Nakata) begins to be attracted to Satoshi Matsuyama (Daichi Kaneko), who is the same age as her and whom she meets.They have lively conversations over meals, he is kind, and they share the same hobbies and wavelengths... One day on a date, Toko drinks until the last train, and Matsuyama ends up staying at her house, where she spends the night with him. [Episode 5 of the miniseries "The Borderline Between Friends with Benefits and Lovers"]

Sachi is an introverted little girl. Her mother dies unexpectedly and although she doesn’t shed a tear, her pain is nonetheless deep and keen. Helpless, Sachi’s father dons his starched shirt and perfect tie and tries his best pick up his work-a-day routine once more. Sachi’s only comfort is a necklace with a ring that belonged to her mother. This keepsake helps Sachi to believe that her mother is always near, protecting her. Bereft, lonely and consumed by grief, her father descends at home into a kind of dementia. And so Sachi will have to manage by herself somehow.

Ichiko and Otoya are happily married, despite not having sex for the last two years. The secret to their happiness is Otoya's affair with Mitsuki, which Ichiko approves. Everything is going well until Otoya rejects Ichiko's advances on the night of their seventh anniversary. In shock, Ichiko seeks advice from her friend who suggests she exercise her right to have a boyfriend of her own.

Having lost love, her job, and her home, Emma had hit rock bottom when she stumbled upon the estate of Chloe, a mysterious heiress. Unexpected happenings lead the two of them to become housemates, and together, they open a fortune-telling shop where troubled souls come searching for answers. The pair soon realize that each client's problem comes with hidden secrets and mysteries.

The subject of "Are we friends with benefits (FWB) or are we in a real relationship?" is tackled in this series of seven episodes.