Rentarou Futaba
main character
TV
6.5
My TrackerPLANNING
Episode: 0 / 13
My Score:
Anime DetailsFINISHED
Estimated watch time
5h 12m
⚡ 3 days at 5 eps/day
Tags & Tropes
Coming of Age80%Male Protagonist73%Twins66%Detective60%Yakuza48%Dullahan40%Mahjong28%Aliens26%
overview details
Synopsis & Story
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)
Trailer
Search YouTubeWhere to Watch Officially
A streaming link is not listed for this title yet.
Featured Cast & Voice Actors
Franchise Universe & Related Entries
Fans Who Watched This Also Loved
Aniphoria guide
Futakoi Alternative: should you watch it?
At a glance
Futakoi Alternative has been met with mixed reactions, with an average AniList score of 65/100 — 32% of 1,893 ratings are 8/10 or higher.
It ranks #58 highest-rated anime of 2005, and #54 most popular anime of 2005, and #21 highest-rated anime of Spring 2005 on AniList.
Of the 3.4K AniList users who started it, 9.0% dropped it, so it is dropped at a typical rate; 2.6K have finished it.
At about 5 h 12 min in total, it is a short commitment — a weekend binge.
Best for viewers who enjoy Comedy, Drama, Romance — especially coming of age, male protagonist, twins, detective.
Where it fits in the series
- Optional extras: Futakoi
Main cast & creators
- Original creator
- Mutsumi Sasaki
- Director
- Takayuki Hirao
- Series composition
- Ryuunosuke Kingetsu
- Character design
- Toshimitsu Kobayashi
Futakoi Alternative FAQ
- How many episodes does Futakoi Alternative have?
- Futakoi Alternative has 13 episodes of about 24 minutes each, roughly 5 h 12 min in total.
- How long does it take to watch Futakoi Alternative?
- About 5 h 12 min back to back. At two episodes a day it takes 7 days; at one hour a day, about 6 days.
- Is Futakoi Alternative finished?
- Yes. Futakoi Alternative has finished airing — the final episode aired June 30, 2005.
- Is there a season 2 of Futakoi Alternative?
- No sequel is listed for Futakoi Alternative as of October 2026.
- Is Futakoi Alternative based on a manga?
- No. Futakoi Alternative is an original anime story, not adapted from a manga or novel.
- Who animated Futakoi Alternative?
- Futakoi Alternative was animated by ufotable and feel. and Studio Flag and directed by Takayuki Hirao.