I recently just read Usagi Drop manga and I loved it and wish for recommendation of similar manga/anime/movie/book/

Basically Usagi Drop is about a man in his mid 30s who adopts a little girl who lived with his grandfather that recently passed away, he raises her since she was 6, basically like a father, and when she becomes around 16, she is in love with him and he reluctantly reciprocates the feeling.

I'm not looking for hentai/porn, I want a romance with plot ( a incestuous romance? ) but a romance nonetheless.