The Death Plan of a Hero of the Empire

Lu Nier was brought to another world by the hero development system, but he only wanted to return to Earth.
According to the rules of the system, as long as Lu Nier dies in an act of justice, he can return to Earth.
This is a story of a traveler who just wants to go home, and is desperate to go home.
"It's him, Lunier, the fearless, the radiance of justice, the number one hero of the empire!"
"I heard that he once hacked down several gangsters with a watermelon knife alone!"
"He also broke into the worship site of cultists alone and saved hundreds of people!"
"He also risked his life..."
Listening to the comments of passers-by, a hero of a certain empire wanted to cry but had no tears.
"Why am I not dead yet!"