DxD: Scion of Lucifuge - Chapter 253: Eliminating Hiruko Kagetane—Adopting Kohina

【Children, remember this. Among the fortunes of heaven and earth, three parts are the essence of literature, seven parts are martial, and one part determines the fate of the realm!】【...10...3+7+1... Hey? Ancestor, something seems off?】

This is a story of an ordinary boy gaining unusual powers from his nightmares… It all started when Lin Sheng experienced something strange on what he thought was just another normal day. He begins to have recurring dreams that lead him on an incredible journey of discovery as he encounters spine-chilling monsters and elusive secrets.

- Description from Novelupdates

As a promise, he went out into the world as an assassin. 3 years later, after becoming the Supreme Assassin, he gave up on everything he had and returned to the ranks of ordinary people. But one day, Kismet, a mystical game created by the National Research and Development had appeared.