フタコイオルタナティブ

Futakoi Alternative

The Futaba Detective Agency, being run by Rentarou, who has taken over the family business, after his father's death 3 weeks ago. Along with Sara & Souju, his live-in identical twin assistants, he ends up running afoul of the local Yakuza. (Source: Anime News Network)

Names

Original	フタコイオルタナティブ (japanese)
Romaji	Futakoi Alternative
English	Futakoi Alternative
Chinese	雙戀2 (traditional · via wikidata)
Also known as	Futakoi 2 · Twin Love Alternative

Facts

Format	TV series · 13 ep · 24 min · 5h total
Aired	2005-04-07 → 2005-06-30 (Spring 2005)
Status	FINISHED
Studio	ufotable, feel., Studio Flag
Source	Original work
Origin	Japan (Anime)
Genres	Comedy Drama Romance
Themes	Coming of Age Male Protagonist Twins Detective

Reception

Community score	6.68 / 10
Bayesian score	7.08 / 10
Composite	48.2
On lists	6,612
Favourited	72 (1.1%)
Completion	76.7%
Drop rate	9.1%
In backlog	49.4%
Score spread σ	1.87

Score distribution

12222935541085226636974678302917910124

Where it places

Cohort	Value	Tier	Rank
Studio	feel.	C	28 of 63
Broadcast season	Spring 2005	D	29 of 53
Studio	ufotable	D	43 of 63
Year	2005	D	105 of 191
Era	Late 2000s	D	585 of 1,149
Source material	Original work	D	879 of 1,732
Genre	Romance	D	941 of 1,687
Season (all years)	Spring	D	1,040 of 1,868
Genre	Drama	D	1,318 of 1,917
Length	Single-cour	D	1,421 of 2,668
Genre	Comedy	D	1,881 of 3,488
Format	TV series	D	1,913 of 3,322
Origin	Japan	D	3,852 of 7,157

Key staff

Director	Jin Aketagawa, Takayuki Hirao
Series composition	Ryuunosuke Kingetsu, Katsumi Terahigashi
Character design	Toshimitsu Kobayashi
Original creator	Mutsumi Sasaki

Franchise — 双恋

双恋

Futakoi

2004TV series42.1

Relation	Year	Title
alternative	2004	Futakoi

AniList id 126 · MAL id 126 · record updated 2026-08-26

フタコイ オルタナティブ