Most wholesome "thing", huh...
I know I'll lose with this goddamn submission, but...
The Language of Love
IGNORE THE PICTURES, IGNORE THE ACTUAL STORY, MY HEART AS I READ THAT AND PROTAG MADE A LIL BURGUER WITH THE CHILD AND PROTAG TEACHED HER TO SWIM. Only a long time after reading it was I able to look back and see it is more lewd than I remembered (I really did play that and think the child was the focus, only to later notice the number of CGs in which she is not the main character)