Shindo Hikari is a demon. One day, this demon named Shindo Hikaru picked up a person named Tayashi Ryo, so one person and one demon started their own training path. Although there were more than just two people, there were also a group of living light bulbs with outrageous wattage...
The journey was bumpy and full of twists and turns.
"It's good to be a human being. It will be easier to become an immortal as a human being."
"Where does it come from?"
"Isn't there a saying that puts down the butcher's knife and becomes a Buddha immediately?"
"..."
"Actually, if I can cultivate, I will become a demon."
"Why, wouldn't it be more enjoyable to be an immortal?"
"No, no."
Shindo Hikari's brain is not working well, and all he remembers about that day is Tayashi's smiling eyes and the reddish mark on his forehead...