MTL - The Other Shore of the Immortal Firmament - Chapter 40 Naidan

Trying to earn a living everyday kept Hyun-Soo busy. However, one day when he was doing a side job of threading beads, he realized something.

-Ding!

She was originally the young miss of the Marquis Estate, but became a peasant girl due to a mixed-up at birth.

Transcend to become the prince of Daxia, activate the Devil Emperor Summoning System, summon the powerhouses from other worlds, and fight for hegemony in the heavens!

If I were the Devil Emperor in the future, I would definitely let your blood stain the sky!

- Description from novelbuddy

Shao Di Yu, an orphan, is adopted as a result of of a murder case involving the deaths of his entire family. Because of some painful experiences, he refuses to speak. However, he has sharp insight; moreover, he becomes under the care of a pair of twin brothers in the police force, who also have a child currently in university. Yu Yin possesses yin-yang eyes, which allow him to see things ordinary people cannot. The two brothers happen to complement each other, and together they investigate various inconceivable incidents.