Does anyone know the title?

[Lucky168]

Hello,

Long time I ago, through random picking I found a manga that tells about a highschool girl and a highschool boy who make agreement to date each other not because of love but because of certain reasons.
I forget what the boy's reason but the girl's reason is because she wants to hide her unrequited love to another boy.
The story is pretty good because the progress shows actually they start to love to each other but they just don't realize it yet.

I want to read that manga again.
Sadly .. I forget what the manga title is..
I even forget what the character names are..
?

 

[Valkynaz]

Could it be Kuzu no Konkai? https://mangadex.org/title/7289/kuzu-no-honkai

Sounds *kind* of like what you're describing? But I've never read it so no clue on what direction it heads in (I only remember it from all the memes from the Anime adaption)