Which promised girl is Raku referring to?


Onodera, Chitoge, and Marika seem to own a key and all of them have a fuzzy
memory of their childhood. I think Raku really met them all when he was young
and made a promise to each, maybe, so that makes all the three promised girls.
Of course, only one key can fit inside Raku's locket but it's not whose key
can fit but the girl he made a promise to. So the point of the story is
whether Raku chooses the "promised girl" or his present love? Or I think is
should be which of the three promised girls is his true love? So the one
Raku's referring to as the "promise girl" is which: **the girl with the key to
the locket** or **the girl whom he promised to love**?

Sorry I think my question sounds a bit confusing but I hope you try to
understand it.




As the manga has ended, we have a winner. And the promised girl is

(click to enlarge picture, pictures taken from chapter 221)

> Chitoge

> [![Nisekoi Chapter 221 page
> 18](https://i.stack.imgur.com/uPrYwm.jpg)](https://i.stack.imgur.com/uPrYw.jpg)

But wait, there is more

> Chitoge overheard that Raku actually like Onodera

> [![Nisekoi Chapter 221 page
> 12](https://i.stack.imgur.com/x5Xcgm.jpg)](https://i.stack.imgur.com/x5Xcg.jpg)

> So Chitoge gave the key to Onodera

> [![Nisekoi Chapter 221 page
> 15](https://i.stack.imgur.com/cDwdFm.jpg)](https://i.stack.imgur.com/cDwdF.jpg)

So, in the end, the promised girl is

> Onodera

> [![Nisekoi Chapter 221 page
> 19](https://i.stack.imgur.com/8kGM7m.jpg)](https://i.stack.imgur.com/8kGM7.jpg)
> [![Nisekoi Chapter 221 page
> 20](https://i.stack.imgur.com/3CgIom.jpg)](https://i.stack.imgur.com/3CgIo.jpg)

So to answer your question, the girl with the key to the locket is the girl
whom he promised to love

