PettyGirl225
The captain of the mugiwaras falls in love with a new companion, but he doesn't know it. All he knows is that he wants to be with her all the time, to talk, to see her smile, to hug her, and little by little he discovers what these feelings are that he is feeling (thanks to Nami and Robin).
WARNING:
This story is super cute, vanilla, lots of love.
It may be a bit long, but believe me it's worth it to see our cap being in love without knowing it.
Fanfic between Monkey D. Luffy x Fem Oc
It's written in the world of One Piece.
Lots of cute, vanilla and beautiful romance like our cap.