Is it worth it?

It's a fantastic story. I would recommend reading the novel first, since the manhua follows the story very closely, but leaves out a few details, so it might be a little confusing in a few places if you haven't read it.

i personally think its worth reading, you'll fall in love with the characters and if you decide to watch the series all of the actors played their characters well.

once you enter the realm you can never go out lol we have this, the novel, the anime version, the drama version, the extras in chibi form. if you want the full detail of everything i recommend reading the novel but if you want a simpler version, easy to follow through watch the anime , then the drama or read this ..you'll get the gist of what is happening.