Love Letter From Thief X For The First Time In Forever

Several years before the boys became Black Foxes, their childhood friend Kikyan had to move suddenly, leaving the boys behind. The guys were grateful that she has returned, but now they have a problem. They can't just go up to their childhood friend and say, 'We are the Black Foxes, a ring of noble thieves.' Can they keep that secret from her? Or will she find out?