I believe the promise girl is chitoge according to chapter 91.
And there must be a reason why the author explain tt chitoge eyes is brown when she is younger.
What make me more sure is that when yui declare her love for raku infront of chitoge in chapter 126! She declare it to her is likely because she remember who is the promise girl and how to unlock the pendant.
I may be wrong, but I feel it's this clues tt the author left along the way as the manga progress.
As for the chapter 126, I agree, I think I mentioned something similar in the last chapters threads...
The story is leading towards this conclusion, but I still think that "he date the promise girl" will not be the end, initially, we will have some emotions after this as well.
thats the main problem with those two (Raku and Kosaki).. it's just too "fake".. more fake than Raku and Chitoge's "fake" relationship..
which makes it impossible for them to go out together.. can you imaging them on a date?.. they'll be over-thinking themselves that they will stand in the same spot for 24 hours.!
I think Chitoge has the key, I think I know why there is 4 keys, and I want Raku and Chitoge to end up together.
Who is the fourth person? The fourth person is Raku's "older sister", by that I mean the grew up together for a couple of years and she (Yui) came back at around chapter 100. She is now the homeroom and English teacher for Raku's class.
Why I think Chitoge has the key? Simple, she and Yui are the only people who had long hair when she was young (Onedera had medium, Tachibana had short hair), and Yui was (and still is) taller then Raku. The faceless girl in the first chapter/episode was the same height as Raku and had long hair.
Why there are 4 keys? Like the book (first couple episodes/chapters) that inspired them to make the promise.
---------- Post added at 08:59 PM ---------- Previous post was at 08:57 PM ----------
Chitoge didn't have blue eyes when she was a kid.
I read this manga out of boredom and liked the jokes but it turned out to be another typical harem manga where girl after girl falls for the clueless protagonist, so dissapointed. But following the typical plot line for these kind of manga's he'll end up with the blondie or it will be left with an open ending. The author clearly doesn't want to favour any girl in particulair since they switch the focus on a different girl all the time.
I think it doesn't, and shouldn't anyway, matter which key of the girls fits to the lock. It is clear as daylight that Raku loves Onedera. Just look how crazily happy he gets by siitting next to her, talking to her, working with her, hearing her support and believing in him, etc. None of the other girls can achieve the same amount of happiness no matter what they do. Sure he talks with them and blushes when they hug him, etc, but that's due him being an innocent acharacter.
Right now a single confessing of either Raku and Onedera would pretty much end the series here and there. Their feelings for each other are obvious for anybody but those two. We would need tons of development to get one of the other harem girls the same chance so that Raku would seriously consider rather being with them than Onedera.
At this moment he would reject any of them or at least that is what feels like would be the case to me.