The Borderline Between Friends with Benefits and Lovers

Yudai Chiba

Acting

Saaya

Acting

Kuruma Takahira

Acting

Rikiya Imaizumi

Directing

Seasons

Season 1

7 episodes

Premiered Sep 3, 2025

Episodes

1–6 of 7

Ep 1

What Are We?

52m

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.

Ep 2

The Ideal Marriage Partner

56m

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?

Ep 3

Falling for a FWB

55m

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.

Ep 4

Neither Lovers Nor FWB – Someone Special

66m

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?

Ep 5

If Only We Are Lovers

51m

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.

Ep 6

Introduction to Marriage Studies