MTL - Start with 3,000 Demon Gods and Become Invincible - Chapter 167 quite exciting

After being abandoned by her long time boyfriend on their wedding day, Rachael lost all her faith in love and relationships. But that changed when she met Andrew again.

With no hope of finding love again in her life, Rachael agreed to marry her father's best friend's son, Andrew Collins. But little did she know fate had different plans for her.

…..

Excerpt:

Holding his drunk wife in his arms, Andrew kicked the bedroom door open.

When he placed her in the bed, Rachael slowly opened her eyes. “Are we home?”

“Yes.” Taking her heels off, he covered her with the quilt. “I'll get you some warm water.” But before he could get up, she grabbed his hand.

“What happened? Do you want something else?”

Kicking the quilt off, she crawled in his lap. Placing one hand on his cheek and the other at the back of his neck, she inched closer. “Andrew—”

“Hmm?”

“I think I am falling for you, what should I do?”

18 years have passed since I was born as Allen, the eldest son of an earl in this world, while still retaining my memories of the present world. This world is peaceful and a stable society. The only extraordinary thing is that I was reincarnated into a world that is lenient on the existence of concubines. I selected a silver-haired maid as a sex slave and second wife candidate from among 10 candidates after a strict fellatio practical exam. I then lived an erotic life at home and at school as an attendant, but my reincarnated life is so fulfilling that I'm worried it will explode, as my busty childhood friend, a noble girl who was unsuccessful, ran for the third wife candidate, and my stepmother, who was my virgin partner, was sold off.

Evan crossed over, but he wasn’t worried at all… because he had the character template from the mobile game and five devil fruits obtained from a lottery draw with him.

Long Fei, a cross-timer and doujin, is an otaku who traveled to another world. In the original world, he was an otaku fan of Gundam and military science fiction.

He died in an accident and was reincarnated into another world. The Gundam works he had read before his death and the techniques in various military novels could be brought to another world.

How would he use the Gundam that Long Fei created? What waves can be caused in this different world?