Nisekoi is a manga series that has been published since 2011. This story tells about Raku Ichijou, a high school student who is also the heir of a yakuza family. He met Chitoge Kirisaki, the heir of a mafia family who recently moved to Ichijou’s class. In order to avoid war between the two family, they need to do a fake dating.
This comic has been adapted into anime series that is produced by Shaft, and has been aired for two seasons and some OVAs. The comic itself has reached its end recently.
The Indonesian Anime Times