MTL - Mystery Hunter - Chapter 327 confusion

An era where the desperate, miserable, and tragic tale of the six heroes who sealed the Dark Mage, who sought to destroy Maple World, became the favorite legend of children.

“The Cygnus Knights have fallen, the Resistance has collapsed, the Cross Hunters have been destroyed, and the adventurers have been annihilated. And the six heroes are dead.”

An era where no one dared to resist the reappearance of the Dark Mage and his followers.

“You are the only one left, El Paume. You’re the last adventurer.”

In that era, there was an adventurer who continued to fight until the end.

Dear tired Reader, it is an honor that you have chosen this book amidst the heavy, gloomy aisles of the Library.It is with some regret, however, that I must inform you this book is ill.Your fingers should be able to feel the raised Proliferation of tissues on the surface of the Skin of the book,The words written in days of old are like Parasites taking root in the pages, longing for someone to observe their writhing,To sense, to decipher, and to touch the very essence of this sick story.If you insist on borrowing this book, please be sure to regularly check your own physical condition.Keep in mind.

Kim Bo Myung, after graduating from high school years ago was living a below average life as an employee of an entertainment agencies PR department.After getting run over he opened his eyes to see that he was back in the past in the body of a member of an idol group?!He gets a chance to regain his lost dreams and write a new legend in the entertainment world and also get revenge !

…but it seems pretty doable.