Multi-Gene - Chapter 850 wrong

'My life is boring.'Cole thought when he was 14 years old.He thinks that there's nothing special about him or his life.And he thought that the only reason he was alive is because he was not dead yet.But then, at the age of 16, Cole developed a hobby.And that's reading novels.When he's reading, he feels emotions he normally wouldn't feel!Cole feels like he's been brought into a different world!And reading novels made him forget about the boredom he's feeling!So he really enjoyed and liked novels!To the point that he even started making one!Yes, Cole became a novel author and his works were seen and read by many people around the world!And seeing people talking about his work and supporting him made Cole enjoy writing too!But after reading and writing novels again and again... for a long time.Cole started to feel less excitement and thrill in doing them...Nevertheless, he didn't stop.Cole feels like he would be bored to death if he stop, so he just continued.Ting-!“Huh?”Then one day, while Cole was reading through the comments of his novel.He received a mail...The sender was anonymous and the content of it didn't make sense to him.“My work had been chosen...?”“They will grant my wish?”“What kind of bullshit is this?”So Cole didn't pay attention to the mail....“Eh?”Though, he suddenly woke up in a different body and a different world!Cole was sent inside his novel!And he became Raven Obadiah...?Who's that?The protagonist? No.The villain? No.One of the major characters? No.I don't know who the fuck Raven is too!Cole doesn't know him too!In short, he's just a fucking extra with no importance in the novel!But there's something weird about Raven's life that Cole doesn't know...And Cole, receiving a chance to have a life he could only dream of in the past...“Hiding strength?”“Staying an extra?”“Letting the main characters handle everything?”“Those sounds boring as fuck!”Cole, or should I say, Raven—decided to live a life full of excitement!He will do whatever he wants, and he wouldn't let anyone stop him!

A river song, triggered a legend of the rivers and lakes.
Tian Zun’s life motto: “My sword is the truth.”
Shen Lang’s life motto: “To serve people with morality, those who are dissatisfied are dead.”

- Description from uukanshu (translated)

The formless ancient world was infested with despicable demons. They hunted and feasted on mankind, keeping the human civilization constantly in a weak and suppressed state.

During the first known year, a magical mountain descended into the world from the realm of the Gods. Carved on this enormous mountain was a message: ‘Heaven Prevails’…

After the Grand Descent, a name that was given to the descending of the mountain, the Three Great Sages made their ways to Mystic Mountain where they learned to harvest what we now call magic, establishing the Mystic Cults and eighty-one sacred shrines to help aid mankind with the cult’s mystic powers against the eternal fight to the death with demons.

- Description from Novelupdates