마니아라는

In a sentence

• 그는 클래식 음악에 깊이 빠진 마니아라는 사실이 밝혀졌다.

  It was revealed that he is a passionate enthusiast of classical music.

  마니아라는 is used to indicate that someone is known or described as an enthusiast (마니아).

• 저는 어렸을 때 비디오 게임 마니아라는 이야기를 많이 들었어요.

  When I was young, I was often described as a video game maniac.

  마니아라는 here highlights someone's identity of being known as a '마니아' (maniac) in a certain context.

• 친구가 저를 커피 마니아라는 별명으로 부르곤 해요.

  My friend often calls me by the nickname 'coffee maniac.'

  마니아라는 reflects that a person is referred to or nicknamed as an ardent fan (마니아) of something.