Please Help!
Years ago I read this one manga and now I can't find it and I don't remember the name.

I think it's considered loli because the main male adopts the main female from an orphanage. Aparently he saw the woman she'd grow up to be as a young child.

The main female has straight long black hair and on a cover wearing a yellow dress i seem to recall.
The main male is wealthy I think and when the female asks him what they're relationship is (ie father, brother etc) that's when they have sex. (Kinda rapey now that I think of it) They do love eachother though...

It has multiple volumes and sometimes towards the end they do get engaged (I don't remember if they actually get married)

If you have any idea what it is please let me know. It's the only loli manga I actually liked and (I don't know if I'll like it now but) I would like to re-read it. Thank you!