Ossan to Shoujo Matome

[MangaDex]

 

[Operatix]

A caring dude and an adorable lil girl. I'd like to see more :3

 

[ForgottenSubs]

Similar setting, never translated though:
https://comic.pixiv.net/works/4538

 

[BCS]

Where's the fanfic bird when you need it