Epoch of Twilight - Chapter 530: Seal

The peerless Demon Lord had been reborn. He used a dragon blade to sweep away powerful enemies from every direction and traversed the entire city, attracting countless beauties.

Lan Anran was sent to the countryside by her parents when she was young. In her past life, she was filled with hate and did not end well.With a chance to relive her life, Lan Anran swears that she will never repeat the same mistakes again. On the surface, she is a medical genius and school beauty, but behind closed doors, she is a hacker and master hypnotist. Lan Anran will do all it takes to protect her family and cure her husband, Mo Jinrong."Master Rong is old and ugly, he isn't as fresh and tender as you are. Quick, give me a kiss!" Mo says."Miss Lan, please have some self-respect! Stay… Stay away from me!"

An ordinary youth living in the year 2050 in the Western calendar accidentally came to a fantasy world created by the collision of magical elements and supernatural technology at the other end of the dimension…

- Description from novelbuddy

This legend tells the tale of the protagonist, Kuroki summoned to protect the demon king from the hero.

Kuroki, unbeknownst to him, suddenly came to another world. He was summoned by the demon king, Modes. The territory which the demon king overrules was in the midst of being destroyed because of the hero. He had no choice but to bow before Kuroki.

“Please save us, Savior Dono!”

Kuroki nodded, deciding to save the demon king due to an unexpected turn of event.