I Was a Sword When I Reincarnated (WN) - Chapter 667

What could be worse than getting married to a demon prince as a human princess for a forced truce?Being in a place surrounded by demons was like a nightmare to Aelin. Demons and humans have always despised each other after all. But things only go downhill, when her husband leaves her shortly after they spend a night together to go fight a war with unknown beings which leaves Aelin at the mercy of her enemies

A young man with no spiritual roots. A person who is thought of as trash by others. He constantly acquires various items thought of as waste by the cultivation world. No matter if it is garbage pills or useless materials, he will take them all!

- Description from Novelupdates

Between heaven and earth lies the greatest truth, and the manifestation of the great truth descends in the form of Gu.　　People cultivate the Qi of heaven and earth around their bodies to control Gu and exert their magical power.　　One year after his transmigration, Chen Qing finally discovered his special features on the day he contracted his first Gu. He was actually able to see through everything about the Gu...　　Therefore, he began to march toward the road to immortality step by step.

The eldest son of the assassin aristocrat Tuatha Dé.

The skill, experience, knowledge of the previous life, magic, all of which grows his power as an assassin.

Excellent assassins pass through. He was usually admired as the ideal lord, and behind it wielded a blade as an assassin aristocrat.