The Lazy Swordmaster is a Manga/Manhwa/Manhua in english language, ACTION series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

He is a warrior who was chosen by the Holy Sword regardless of his will for the sake of mankind, but he became tired of living for others. Out of salvation, he defeated the last enemy, the Demon King, and decided to die. In order to relieve the burden of being a warrior and a master of the holy sword, he was going to give up on his life and fall into eternal rest... "Oh!! It seems like the young master wishes to grab the sword as soon as possible!!" "Count! Look at the master! He must have already shown interest in swords!!" The youngest son of a master swordsman who gave up his life to escape the sword was reincarnated!? "I'd rather die again!!"