MTL - Yu-Gi-Oh!: Underworld Boss, Cancerous Creator God - Chapter 17

When Bai Xun was bored, she played a dating game recommended by a friend. She entered the game and must keep up the affection with seven different types of men as the only way to clear the game. Only when she gets seven hearts safely can she go home? After many deaths, Bai Xun knew it, and could only live by paying closer attention!!

- Description from Novelupdates

“Missus, time to fulfil your duties!” Mu Yuchen demanded as he pulled Xi Xiaye closer with his arms intimately wrapped around her waist.

It was a meticulously planned feast for the powerful. Her fiancé had knelt down on one knee and proposed to her sister instead. Robbed of her right to her inheritance, she was prepared for the Xi family to throw her to the wolves.
As she slipped away from her family that had turned their backs on her, she found him — Mu Yuchen, the low-profile and reserved noble that ruled City Z and led Glory World Corporation.

“Mu Yuchen, let’s get married!” He looked up at her, then suddenly stood up.

“Where are you going?”

“Let’s go. Any later and the civil affairs bureau will be closed.”

- Description from Novelupdates

The middle boss of the AAA-class game produced by the company. The villain who dies 999 times out of 1,000 times. Deculein.That person, was me now.“You’re going to die on almost every route.”Deculein, like all villains, inevitably dies.[First and foremost survival goal: Be what the game requires you to be]I’ll have to survive even if it means twisting my fate if I am destined to die.

“Marry me under the conditions that we will divorce in 5 years.”