MTL - I, Luffy, Awaken the Sun God on the Top - Chapter 150

Outer Sect Disciple Chen Yu, assimilates within his body a fiendgod heart.The heart, is the backbone of life, the human body’s fatal vital point. And it can be said that Chen Yu’s heart is actually his strongest defense point, and permits him to overtake demonic beasts, or divine beasts unlimited potential.Henceforth, he steps onto the stage and surges forth on a magnificent scale, in a heart-rending mysterious journey.Talented as a cloud, an unparalleled supreme talent.10,000 races glorious, cross boundary battles.Only my heart, eternal!

You thought being reincarnated as an extra-side character was bad? Imagine being thrown into the body of a villain who is disowned by his own family and discarded by the author.

In my former life, I dedicated most of my adult life to achieving my goal of exploring the stars. Unfortunately, due to circumstances outside my control, my life abruptly ended leaving my dream unfulfilled. Thanks to the intervention of the Big Guy Upstairs, I was given a chance to achieve my dream though the one who reincarnated me screwed me over. Unlike the futuristic type of world I wanted to start in, I ended up being born in a medieval, magical world as the third son of a regional baron. All I can do now is Dungeon Crawl for ancient technology in the hopes that I find a ship or technology to get me off this damn world!

One day, Zhang Fan, a poor medical student, receives a medical system from the future. This turns him into a new shining star in the medical field. Along the way, he must face medical corruption, competition, and infighting from other doctors, and even find time for a love life as he strives for the top of the medical field!

- Description from Novelupdates