Cadenz's Obssesion

what does obssesion means? is it when you give love too much its just an infatuation?

STEPBROTHERS - BTS FF [Moon Land]

This is the story of a high school girl, Y/N, who has an average life, but it will all change when her mom will get married to the father of BTS. Y/N's life will turn upside down because the school's most handsome and powerful boys will be her new stepbrothers. But the problem is that she doesn't want those seven dev...