MTL - Pokemon Elf Master - Chapter 123 doubt!

In the fourteenth year of the doomsday like a holographic game, Mo Ran, the top dead master, was cast aside by the three major races of humans, orcs, and elves.
Genocide? betray? Assassinated? This time, as long as I’m here, it’s impossible.
Humanity? Elf? Orcs? Take mine and return it, eat mine and spit it out, be prepared to pay the price!
Demining:
1. Gamification of doomsday is impossible, gamification of life is impossible, and gamification of doomsday is even more impossible. Don’t point at the background bar.
2. Both the heroine and the heroine are not good people. Everyone has different positions. They serve the plot. Don’t point at the hero and the heroine.
3. The author is glass-hearted, and all kinds of abuse will rebound ten times, don’t point at the author!

Content tags: Rebirth Doomsday Games online games Shuangwen
Search keywords: Protagonist: Mo Ran ┃ Supporting role: Ming Yuechen ┃ Others: doomsday, holographic, strong
One sentence introduction: As long as I don’t die, you are all scum.
Conception: In online games, no matter what adversity, as long as you persevere, you can win.

- Description from novelbuddy

Xia Lian, a 21st century military doctor died in an explosion and found herself transmigrated to the body a 12 year girl. Her mother died and her father abandoned her and her little brother for another woman.

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.

William Scott, a soldier, returned to the city with the goal to live the rest of his life peacefully. He would practice the lifestyle of a retired person.

However, his mother set him up on blind dates time and again. Unwilling to keep up with her arrangements, he was left with no choice but to pretend to be in a relationship with Yvette Quinn, a female CEO who was also forced by her parents to go on blind dates.

To his surprise, this was only the beginning of many troubles to come. Before he could get to settling those troubles, he first needed to sort out an even more pressing problem.

The girl looked at him and asked, “Take a guess. Am I the elder cousin or the younger cousin? As my boyfriend, you should be able to differentiate between the two of us, right?”

His contract girlfriend was so unprofessional. Although they had an agreement, she was always asking her younger cousin to take her place and pretend to be her around him.

What should he do about that?