Rikiya Imaizumi
Director
The Borderline Between Friends with Benefits and Lovers (2025)
Season 1
The subject of "Are we friends with benefits (FWB) or are we in a real relationship?" is tackled in this series of seven episodes.
Released Sept. 3, 2025
Episode 57 min
None+
S1E1 - What Are We?
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.
Sept. 3, 2025, midnight
S1E2 - The Ideal Marriage Partner
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?
Sept. 3, 2025, midnight
S1E3 - Falling for a FWB
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.
Sept. 3, 2025, midnight
S1E4 - Neither Lovers Nor FWB – Someone Special
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?
Sept. 3, 2025, midnight
S1E5 - If Only We Are 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.
Sept. 3, 2025, midnight
S1E6 - Introduction to Marriage Studies
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.
Sept. 3, 2025, midnight
S1E7 - Special Person
"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 (Mizuki Yamashita) playfully blows air on Kazuki Fujiwara (Sojiro Yoshimura) 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.
Sept. 3, 2025, midnight
Network: Prime Video
Episode Runtime: 57 min.
Season Runtime: 402 min.
Released: Sept. 3, 2025
Last Air Date: Sept. 3, 2025, midnight
Status: Returning Series
Certification: NR
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