Reincarnation Of Third-rate Swordsman

A Third-rate swordsman who's living a normal life with his wife when the heaven's suddenly turned his world upside down.His wife got kidnapped by his mortal enemy and he was killed by his both sworn brother.However, when he thought that it's already his end.An unprecedented thing happened.He found himself back on his little apartment on earth eight years ago before the Transmigration of the Humans to the new world.Now, with his Knowledge about the new world join Kim Shin how he planned to use it to achieve his goals.Would he be able to kill his sworn brother after he found their real reasons?orWould he be able to easily kill his sworn enemy to achieve his dream vengeance?