@RWorld you made me question who's the dad of the girls now...
@Hejti It was explained a few post above that it's a pun badly translated/not explained by this group. Basically the "merchant" girl was trying to say she was his guardian angel in japanese but MC was checking on her with a rather unfriendly glare at the moment so she backtracked midway the phrase/word to avoid raising even more suspicion onto herself so you get the "huge fan" translation.
Nevermind found the raws. She was widowed at 36. I was wondering how the hell she would know how old Renya was when he died and how the hell she would be off by 50~60 years.