The S*ave of the “Black Knights” Is Recruited by the “White Adventure's Guild” As an S-ranked Adventurer

I worked like a s*ave in the chivalric order, where all the outcomes were exploited my senior, but I was scouted by a pretty little girl who called herself a guildmaster.Initially I accept it half-jokingly but after I was shown a great sum of advance payment, I decide to leave the chivalric order. When I went to the guild, even the title of S-rank was prepared.—This is a success story of a man who has never had a good thing since he was born.