An interesting departure from canon characters.

A great story, thank you.

Positive, hahahahah

Brilliant! Please write more.
It is very satisfying that Mycroft doesn't know his face if he ever finds out will be priceless. Does Sherlock still wear suit, like 24/7 outdoors?
Pity, there's no story where John is a kingsman, active or retired, and neither of the brothers know it or about the service. Or John becomes one when Sherlock is "body-dead". Imagine the surprise! Haha

I really enjoy reading this! I have no trouble seeing Sherlock as a Kingsman.