To Save My Cousin, My Fiancée Actually Made Me Become Her Father

[System + Invincible Flow + Pretending to be Weak to Deceive the Strong + Genetic Martial Arts + Multiple Female Leads + Thrilling Read]

"I'm your fiancé, yet you've given me to your cousin?"

In the age of genetics, strength reigns supreme. I was betrayed by my school beauty fiancée, who turned out to be Shangguan Xue, the most beautiful woman in Tiandu...

I thought it was a great humiliation, but who knew it would activate the system. As long as Shangguan Xue cultivates, I will receive a thirty-fold return!

"Shangguan Xue's gene tempering has yielded a 30-fold return, and your physical body has broken through the limits of ordinary people!"

"Shangguan Xue unlocks eight gene locks, and you receive a thirty-fold return, your gene circuits becoming as vast as rivers and seas!"

"Shangguan Xue comprehends a Heavenly Rank sword technique, and you receive a thirtyfold return, directly reaching the Divine Realm of Sword Dao!"

From then on, Shangguan Xue forged ahead, shocking the world, while I lay leisurely in the rear, silently invincible.

Everyone thought I was a good-for-nothing who relied on women, but little did they know, I was the man who made a legend.

When the alien races from deep space descended and everyone was in despair, I slowly stood up: "Alright, ladies, warm-up's over, it's my turn."