Responses
http://www.mangago.me/read-manga/hananusubito_kaneda_shoutarou/
i dunno if his name is Mr.smith or not... the story seems alike
Maybe is this one
http://www.mangago.me/read-manga/kayashimashi_no_yuuga_na_seikatsu/
Yaoi manga where gardener falls in love with a rich uke. I think there is mr. Smith. Cannot remember...thanks in advance.