Nisekoi: False Love is a live-action adaptation of the popular manga series Nisekoi. The film explores the relationship between Raku Ichijo and Chitoge Kirisaki as they pretend to be a couple to prevent their fathers' gang war from breaking out. As they spend more time together, Raku Ichijo starts to develop feelings for Chitoge Kirisaki, despite his initial dislike towards her.
However, their relationship is complicated by the fact that Raku Ichijo made a promise to a girl 10 years ago, and he wears a locket with a key that can open it. He believes that the girl he made the promise to is his true love and hopes to find her one day.
The movie also introduces other characters from the manga, such as Kosaki Onodera, Raku Ichijo's childhood friend who also has a crush on him, and Marika Tachibana, a wealthy heiress who is betrothed to Raku Ichijo. The film explores their relationships and how they intersect with Raku and Chitoge's fake relationship.
Nisekoi: False Love is a romantic comedy with elements of action and drama. It stars Kento Nakajima and Ayami Nakajo as the main leads, and was released in Japan in 2018.