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The Borderline Between Friends with Benefits and Lovers (2025) | airing.show
The Borderline Between Friends with Benefits and Lovers

The Borderline Between Friends with Benefits and Lovers

セフレと恋人の境界線

September 3, 2025
-
1 Season
7 Episodes
Drama

Overview

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

Episodes

1
Episode 1September 3, 2025

What Are We?

52min

A woman, after a chance encounter, spends a night with a man but finds herself stuck in an undefined relationship. As she attempts to break free from the FWB label, an unexpecting ending awaits…! A gripping and all-too-real story is led to this thrilling must-watch experience! Directed by Yoko Yamanaka (of Namibia no Sabaku), with a script by the husband-and-wife duo Rikiya and Kaori Imaizumi.

2
Episode 2September 3, 2025

The Ideal Marriage Partner

56min

A magazine editor in a casual relationship finds her life changed after starting to date a classmate she reconnects with at a wedding. The new relationship forces her to confront differences in values and lifestyles after they move in together, How far can one go in pointing out their partner's small flaws, and can she be honest with herself?

3
Episode 3September 3, 2025

Falling for a FWB

55min

A senior and junior from university maintain a relationship as friends who also have sex, confiding in each other about various aspects of their lives. However, when something happens, one starts to develop romantic feelings. The story explores the nuances between friendship, romance, and the complexities of intimacy.

4
Episode 4September 3, 2025

Neither Lovers Nor FWB – Someone Special

66min

An ending open to multiple interpretations, how will you see it? Through three short films, the studio members thoroughly discuss what defines FWB and lovers, and where the line is drawn. What conclusion do the four MCs, along with director Rikiya Imaizumi, come to?

5
Episode 5September 3, 2025

If Only We Are Lovers

51min

One day, 26-year-old Toko Tanabe begins to be attracted to Satoshi Matsuyama, 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.

6
Episode 6September 3, 2025

Introduction to Marriage Studies

46min

Sana Ikegami, 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.

7
Episode 7September 3, 2025

Special Person

76min

"Shall we do it today...?" "Either way." "Well, I guess we won't do it today then." While drying her hair with a hairdryer, Tomoko Kawabata playfully blows air on Kazuki Fujiwara as he brushes his teeth. The two frolic around like a close couple, but they are not lovers; their relationship is more ambiguous, like that of friends who also have sex.

Cast

YOU

YOU

Yudai Chiba

Yudai Chiba

Saaya

Saaya

Kuruma Takahira

Kuruma Takahira

Rikiya Imaizumi

Rikiya Imaizumi