 If you liked
Futakoi
|
 ...then you might like
Nisekoi
|
Harem comedies that rely a lot on coincidences, where every love interest has something oddly specific in common. In Futakoi, pretty much every single female character has a twin sister. In Nisekoi, every female lead hold a key that is connected to the past of the main character, and most of them have something to do with the yakuza. The names are also similar, both being a play on the word love and the main theme of the show.