MTL - Great World of Magic Cube - v3 Chapter 2173 The Avengers

In the era of universal mechas, people can go to the endless abyss, collect materials, strengthen and forge their own mechas, and master the power of destroying the world.

Jiang Chen traveled through time and awakened his talent [Immortal Unarmed]. Once the mecha is broken, he can permanently absorb its power and receive multiple bonuses.

…

At the bottom of the abyss, when the Old Demon God finally broke the Titan mecha with great effort, a hand stretched out from the fragments and held down its head.

“Congratulations, you have unlocked my limiter.”

- Description from novelbuddy

Traveling to a parallel world where demons reawaken, Lin Heng becomes a Daoist and is tangled with the eerie Life-Buying Money.One day, ten years of life are borrowed, and as he faces the brink of extinction, fortunately, the system activates!“Fusion, Five Thunders Righteous Method!”With the Great Divine Techniques of the Celestial Master's Mansion in hand, Lin Heng awaits the eerie entities coming for his life that night.

[Welcome to the Type-Moon System!We offer our most sincere blessings to you, our user.As a beginner, you’ll receive our initial care—a single free draw with a guaranteed five-star.Additionally, you'll enjoy a beginner’s privilege: a guaranteed strategy draw (up to three stars) until your beginner phase ends.Moreover, if you decide to become a player now, you'll receive a pocket dimension for storing your items.You'll also be granted special transmigration privileges, letting you experience what it's like to be the protagonist.So, what do you say? Are you interested in joining?]The boy sitting in front of the computer made up his mind and pressed the “Confirm” button.At that moment, his consciousness froze, and a black hole appeared before him, swallowing him whole.In the dimly lit room, the computer screen still glowed, displaying an unsettling line of text, as if it had snared its next victim.[Welcome to join us.]

This book is about Jay (ceo of Mariano Enterprises) and Keifer (ceo of Watson Enterprises) falling in love. Ofc Jayfer is the endgame :)