Mo Lang, a bad boy, and Bai Qi, his genius friend, lived a quiet life in a village in the distant country of Niuzhan. Until one day, a mysterious assassin from the country of Xuanwu appears, who completely subverts their lives, forcing the two youngsters to embark on an adventure that will change the world. The manhua is a prequel to the animated series Scissor Seven, chronicling events from before the original series. (Source: Tencent, translated)

Fifteen years ago, the Demon Lord, all human's enemy, was killed by HERO. The war lasted for 1000 years finally ended. With the Demon Lord's death, the Demonpedia——the symbol of Demon Lord——was lost as well. (Source: WeComics) *Note: Chapter count includes the one shot*