Mitou Shoukan://Blood-Sign - Volume 2, Prologue

Ding Ning was just an ordinary youngster from a small border town in southwest China, but he had learned tremendous medical skills from his masters since his childhood. After graduating from college, he stayed in Ninghai City and tried to seek a job in a hospital there, but things did not go well at first. However, he accidentally saved Shen Muqing who was from a rich and powerful family, and then got involved in the confrontation between Ninghai special police team and a mysterious organization called Vampire Mercenary Group in order to protect Ling Yun who was his landlord’s daughter. It became the turning point of his life. After that, he started an incredible adventure during which he would find out the real identities of his father and masters and discover the secrets behind the mysterious organization Vampire Mercenary Group and the special weapons and tactics team Dragon Soul…
The story tells about how he opened nine apertures, fought with rogues, chased after various pretty girls and established a rich and powerful family by himself. He climbed up to the peak of his life step by step, and finally became medical sovereign.

- Description from Novelupdates

Reborn into the Marvel world and become the son of the boss Jin Bing, what about the prince of the underground forces?

Don’t panic, the Black Shadow Corps provides the most loyal subordinates!

Twelve spells give you extraordinary power!

The eight demons will let you master the supernatural powers of overturning rivers and seas!

If you want to challenge, line up and come one by one!

- Description from novelbuddy

Living a perfect life helping others and without committing any wrongdoing, Noah meets his untimely end saving a girl from being hit by an incoming truck.While he accepts his end, he finds himself not in whatever afterlife awaits, but an enigmatic place only known as “The Cycle.”Due to his “Perfect” karma of one million, he is transported to a fantastical world of magic, though he chooses a simple, quiet life along a lake. However, when being sent to this second chance at life, one gift is bestowed upon him:[...Integrating System…][Jack-of-All-Trades System Activated.]From doing push-ups, chopping trees, and even cutting vegetables, every action is its own unique skill, able to be ascended from a meager level of zero all the way to greatness!

Strange occurrences arrive, the terrifying world merges with the Real World.Humans fall from the top of the food chain to the bottom.In a single night, humans become the blood food of these evil spirits.In times of desperation, those with tattoos gain power beyond imagination from their patterns.They are called Life Pattern Masters.Some have inscribed Buddha, using Buddha's Radiance to protect a city.Some have inscribed executioners, cutting down countless Evil Spirits.Lin Yuan, once struggled for three years in the world after the doomsday arrived, suddenly traverses back to before the apocalypse.In this lifetime, he is determined not to be an ordinary person.Thus, he inscribes the entire Underworld onto his life.Black and White Impermanence.Ox Head and Horse Face.Four Great Judges.Ten Yama Kings.Ksitigarbha, Ghost Catcher Zhong Kui.Emperor Fengdu.Lord of Mount Tai.........