I finally managed to kill the demon lord. Can't I rest a bit now? Just leave me alone. Let me rest.

A hero from a modern world is reincarnated in a new world. He just wants to lead a peaceful new life, but his troubles begin when his family begin choosing their new successor.

Meanwhile, new enemies are rising from the shadows...

Riley Iphelleta, in his past life, was a hero who defeated the demon king. Although he emerged victorious throughout his battles, the emotional strain of continuous fights got the best of him.

After experiencing rebirth in a household that upholds their reputation through sword skills and that doesn’t lack power to support a leisure life, he decided to be Iphelleta’s House’ lazy swordsman, but the course of life isn’t easy as he wants it to be so he must make a choice if he will bare his fangs or continue…

… his naps.

Original Novel: http://novel.munpia.com/64718

Source of Chapters 1-198: https://lightnovelbastion.com/project.php?p=68