Responses
This? But it's not long, though it contains about the aphrodisiac chocolates thing - http://www.mangago.zone/read-manga/keep_out_kisaragi_hirotaka/
There's this, but I don't know if it has the story about the aphrodisiac -
http://www.mangago.zone/read-manga/the_4th_guard/
I'm looking for a yaoi manga that is pretty long and has many different stories. They're all spies or something and in one of the stories there's a secretary that buys aphrodisiac chocolates for his boss.