Physician's Odyssey - Chapter 878 - Does your conscious hurt?

A young boy named Chen Zong got lucky and found a mysterious Sword Seal. With the help of it, he rose to be a God in Sword who defeated innumerable top talents in all universes from a remote borderland.

- Description from Novelupdates

From the outcast of the imperial family to the emperor, Wei Chongrong’s path to the throne took thirty years.

In his previous life, everyone thought that he shouldn’t exist.

Only his youngest uncle was good to him, so he went through fire and water for him.

But what he ended up waiting for was the poisoned wine poured for him by the youngest uncle’s own hands.

Starting over, Wei Chongrong, who is familiar with the future, finds that the road ahead is still bumpy.

The battle that is bound to be lost is about to happen, and the scourge of witchcraft is close at hand.

What can he do to save the Eastern Palace and the imperial family, and to save Jun Hua, to whom he is indebted for a lifetime?

- Description from Novelupdates

The MC entered the body of the An family eldest son, An Ziran, an arrogant 16 years old boy who weighed 78 kg (~171-172 lbs), who only knew how to eat, play and sleep. Seeing his current body, An Ziran decided his first priority was to LOSE WEIGHT!

I met the male lead in prison.