He is the main character, and the son of a legendary detective. He has high fighting ability although he doesn&#039;t use it often, only at the most important moment. He has a lot of luck around twins, having had many relationships with many pairs throughout his life. When push comes to shove, he manages to get the job done, even if a few animals are harmed in the process. 

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 &amp; Souju, his live-in identical twin assistants, he ends up running afoul of the local Yakuza.
 
(Source: Anime News Network)

__Height:__ 174 cm

[Profile (HeroQ)](https://heroq.com/members/seki_tomokazu/) | [Profile (Atomic Monkey)](http://www.atomicmonkey.jp/jp/archives/talent/sekitomokazu) | [Twitter](https://twitter.com/seki0908) | [Instagram](https://www.instagram.com/sekitomokazu/)

A Japanese voice actor, stage actor, narrator and singer affiliated with talent agency [Atomic Monkey](http://www.atomicmonkey.jp/jp/), having previously worked under [Haikyou](https://haikyo.co.jp/). He's also a chair member of creative production team HeroQ, which he joined in 1994.

__Non-anime voice roles:__
- Miguel O'Hara - *Spider-Man: Across the Spider-Verse* (2023 Film; JP dub)
- Toad - *The Super Mario Bros. Movie* (2023 Film; JP dub)
- Marc Spector/Moon Knight, Steven Grant/Mr. Knight, Jake Lockley - *Moon Knight* (2022 TV; JP dub)
- Siegfried Kaslana - Honkai Impact 3rd (VG)

Futakoi Alternative tells the story of Rentar&#333; Futaba and his detective agency. One day a set of twins, Sara and S&#333;ju, show up at his doorstep. They move in with him and work as secretaries for his agency. 
Classifying Futakoi Alternative as a specific genre is extremely difficult, although at its core, it is most similar to a romantic comedy. The first handful of episodes are lighthearted, but the series becomes more serious as it approaches its conclusion. The criticisms about the show is normally the same as its accolades: Namely, that it never settles completely into any one genre or style and switches between them from episode to episode (being almost equal parts romance, action, scifi/fantasy and comedy). 
-wikipedia

Rentarou Futaba