It’s a bit of the story so that people will go read the novel. Sometimes they’ll make it into a manhwa
It's a Promotion for a Novel
Promo is like a trailer in a movie, but promo is a trailer of a novel, its a promotion for a novel
It's like an Epilogue
You mean, a Prologue...
(Sorry, my correcting habit can't be fixed no matter how much I rein myself...)
Oh right, my bad ┗( T﹏T )┛
can someone tell me what does a promo means??... ╮(￣▽￣)╭