Prologue

(Y/N) was part of an unnamed group of thieves that can wield magic, who were a potential threat. However, the group had been defeated and been killed by some Holy Knights when they were caught stealing. (Y/N) was the only member of the thieves who had survived the attack and was had to hide for safety. Gowther, the emotionless sin of lust, has met (Y/N) one fateful day. Ever since that event occurred in his life, he had been feeling odd. Is this his first ever emotion?