BTS: BTS Universe Story 'MAP OF THE SOUL' Poster

BTS: BTS Universe Story 'MAP OF THE SOUL': With BTS. The BTS Universe or Bangtan Universe (short: BU) was initially known as: The Most Beautiful Moment in Life Series, Hwa Yang Yeon Hwa Series or HYYH Series - until the official name and logo were first used in 2017. Independently produced by Big Hit Entertainment and based on characters inspired by the members of BTS. The franchise include short stories, books, a webtoon and a visual novel.