Immortality begins with Becoming an Alchemy Grandmaster - Chapter 1011 - 407 Whoever wins we help; when the

A boy from 21st century Earth, met an accident and later was reborn in Naruto’s Ninja World.
He is born in Uchiha Family and becomes the useless brother of Itachi Uchiha and Sasuke Uchiha…. Let’s see how he changed the Naruto world.

- Description from Novelupdates

A mysterious game called “Forsaken” descends upon the world. Players can slay monsters to extend their lifespan, or consume their lifespan to extract game abilities into reality!As extraordinary powers emerge, chaos spreads across Blue Star, plunging the world into disaster.In his previous life, Qin Feng, along with his cousin Qin Xiaoyou, rose to become one of the top hundred global powerhouses. But in the end, he was betrayed by his star-struck sister, who gouged out his 'Ancient God Eyes' to gift them to her idol.Reborn in a new life, Qin Feng chooses to walk alone!His sister? Let her be damned!Thus, a god-level assassin with no shadow or form is born.He is the Shadow, dancing in the dark with his blades. Death and slaughter bloom like art in his hands...Surrounded by countless corpses, he will ascend to the throne of gods!P.S.: Skills evolve infinitely—permanent invisibility, one-hit kill, hundredfold drop rate, divine slaying with ease...

A surgeon accidentally got the blessings of a system, shocked the medical industry, and rejuvenated countless people.

- Description from Novelupdates

The Assertive Female Lead VS The Super Strong Male Lead