Title: The Legend of Demon Masanari
Link: https://www.webnovel.com/book/the-legend-of-demon-masanari_17677754306406205
Sypnosis: Adam was living a life that would make any one jealous of. Riches, cars, houses, women all at his fingertips. But there was things he really cared for and desired, which are relics that belonged to famous people in history.
When he heard that Hattori Hanzo's spear will be revealed to the public. He dropped everything he was doing and got on a plane to Tokyo to get his hands on the spear.
However, his plans changed the moment he place his hand on Hanzo Hattori's tomb. He felt his entire being being sucked into another world. The last words he heard in the darkness caused his heart to race in excitement. "If you desire the spear, you need to show you're worth it..."
He opened his eyes staring at middle age people wearing swords at their sides calling him Masanari. His child like hands holding a wooden sword. His new life as a samurai has begun... Will he become worthy of holding Hanzo Hattori's spear and become the demon he's supposed to be?