메인 히로인이 엑스트라를 좋아한다 (Associated Names)

He is the fiancé of the sub-heroine and an extra who appears briefly as a villain early on. Despite his self-discipline and amicable relationship with his fiancé. She went to the protagonist’s side. Author note: There is a description reminiscent of NTR in the beginning. It has nothing to do with the heroine, but please…