I Refined Myself into a Peerless Magic Weapon

The protagonist travels to a mortal family in another world, and is led to the path of immortality by his brother who is a monk. He discovers that he has excellent qualifications and a bright future. However, due to an unprovoked mistake, the family was wiped out, and he found that he was unable to build a foundation. In desperation, he used the art of weapon refining to practice, and embarked on a rough road of revenge... (Newbie, please take care of me)