Could you please suggest to me manga titles about childhood friend romances? I know there are many out there, but I am searching for something a little specific:

Stories with happy endings, where the ending is a definitive one, meaning that it finishes with either a wedding, a proposal, or at least with characters saying something important, like promising to be together forever etc.

Also, preferably no harems and love triangles or, even if this element is present, at least no actual cheating, it should be obvious from the beginning whom the main character likes.

And, if possible, please suggest stories where there is a part dedicated to the childhood of the main characters together, or at least there are flashbacks. That’s not a necessary requirement, but it would be nice if it’s present in the story.

I know, maybe such stories I am seeking recommendations for seem too banal or sugar-coated, but I am just tired of tragedies and cliff-hangers lately, just want to read something tender and touching.

Thanks in advance

Love at First Sight
Narration in Seventeen
Sweet Black
Venus Kisoukyoku

I hope you like them, and since you don't have public lists, i can't check if you have read them or not.

Thanks! Don't worry, I think whatever will be suggested will be new to me, as I am new to the manga, have read almost none until now, have been mostly interested in anime, have started being interested in manga only recently.

Sakurasaku Shoukougun
Ginen Shounen
Magician (Kim Sarae)
Bird Kiss
Teru Teru x Shounen
Fushigi no Maria-kun
Sora no Manimani
Hachimitsu ni Hatsukoi
Takkoku!!!

All I can think of right now.

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[m]Honnou no Chocolate[/m]
Kimi wa Midara na Boku no Joou Borderline H, but not that bad.
[m]No Bra![/m] Crossdressing
Onnanoko Tokidoki Otokonoko More Crossdressing
Ryuu no Hanawazurai
Sad Love Song Melodrama
Sore wa Totsuzen, Unmei no Aite ga Really recomended.
Tsuiteru Kanojo
Fairy Cube