The Adventurous Gamer Ninja - Daichi Hekima - Chapter 23: Kensei’s Motives and End of Training.

In a shocking turn of fate, Jack Anderson's life is brutally cut short. But death isn't the end for Jack; instead, it marks the beginning of an extraordinary journey.Reincarnated in a mystical realm, Jack discovers he's been gifted with incredible powers and an enigmatic system that guides his every move. As he navigates this unfamiliar world, Jack must confront formidable enemies, unravel ancient mysteries, and unravel the secrets of his own destiny.With the undead system as his trusted ally, Jack embarks on a perilous quest to unravel the truth about his past, his newfound abilities, and the hidden forces manipulating this strange new world.Will Jack master the undead system and unlock its full potential, or will the shadows of his own mortality consume him? Dive into the world of 'The Undead System' to join Jack on his heart-pumping, action-packed adventure through the realms of the unknown.

Floren, the most renowned realm of all realms, yet forgotten by all. The soul of a person from Earth accidentally crashed into this unexplored realm, ending up in a dragon egg. Transforming into a crimson dragon with the mindset of a human, Claudius was different from other dragons. He only wished to live an easy life, enjoying his lifespan of thousands of years to its fullest. However, the world is not such a forgiving place, dragging Claudius into countless struggles and death battles. Is it really possible to live a leisurely life?!

- Description from Novelupdates

As a promise, he went out into the world as an assassin. 3 years later, after becoming the Supreme Assassin, he gave up on everything he had and returned to the ranks of ordinary people. But one day, Kismet, a mystical game created by the National Research and Development had appeared.

This was the era of worldwide auto transformation!At the age of eighteen, everyone could awaken their autos and become auto men!Some awakened off-road vehicles, some awakened sports cars, and some awakened bicycles!By defeating the steel beasts and mechanical abyss monsters, unlocking achievements, and completing missions, one could earn point rewards to purchase various accessories such as firepower, armor, energy, and power cores!Xu Gu transmigrated here and started off by awakening an S-class heavy truck! Unexpectedly, he even had an additional binding to the Ultimate Enhancement System.[S-class heavy truck] got enhanced and became [SSS-class Leader, Optimus]![S-class liquid hydrogen energy core] got enhanced and became [SSS-class portable hydrogen fusion energy core]![SS-class defense force field] got enhanced and became [God-level Supreme Domain]![SSS-class photon pulse cannon] got enhanced and became [Super God-level Annihilator Cannon]!Starting with the Ultimate Enhancement System, with the body of an auto man, Xu Gu conquered the world, dominated countless realms, and proved his invincibility!