Martial Arts

Revenge, he almost died because of poison, torture by one man. The man he poison him with a lot of different poison so he wants revenge for his sect and he killed everyone who is involved in killing his sect.

Defeated by a suicide attack in battle and is reborn as a first born child to a local lord. Having a fresh start, a warm family and a little sister to protect - he decides to become a better person in his new life.
Good read

Betrayed by the people in the sect and his father killed himself to save the him and he goes on the path of revenge.