Characters:
Taro is kind-hearted but struggles to control his new demonic powers at first. As a photographer, he has a real eye for beauty and composition which helps him in battles.
Yumi is smart, ambitious but also cares deeply for others. She's drawn to Taro's sensitive side but worries about his secrets.
The descendants of the samurai have trained for generations to one day face the Demon King again. Their leader, Kenji, is the most formidable warrior but also most obsessed with finishing what his ancestors started.
Plot:
Early chapters would focus on Taro getting accustomed to his new powers and the modern world. We'd see his everyday school life and developing friendship with Yumi.
A mid-story revelation could shake things up, like Taro learning the truth about his past death at the hands of Yumi's ancestors. This causes drama and tests their bond.
Plenty of action set pieces are needed! We can craft epic showdown scenes where Taro faces off against fierce demon beasts or teams of samurai warriors.
Art Style:
I'd recommend a dynamic style that balances detailed character designs with dramatic splash pages for big battles. Maybe lean into ominous shading for demon/horror elements while keeping romance moments light and emotive.
Let's also plan some big climactic moments:
Emotional reunion with past friends/lovers from demon realm
Final 1 vs 1 duel between Taro and Kenji that determines the fates of both clans
Romantic confession between Taro and Yumi after the dust settles
Taro was just your average high school photographer, more interested in capturing the beauty of the natural world through his lens than fighting demons. But one day, during a secluded photoshoot in the woods, he has a strange encounter.
A mysterious light engulfs him, and when Taro wakes - he has strange new powers! Through a series of flashbacks, he realizes he was none other than the great Demon King who was slain 1,000 years ago by a group of heroic samurai. But it seems his soul has been reincarnated into the modern world.
Now Taro sets out to discover why he's returned and how to harness his new demonic abilities. But he soon learns the descendants of the samurai who originally defeated him are still around - and see Taro as a threat. They will stop at nothing to make sure the Demon King doesn't regain his full power.
As Taro trains in secret, he catches the eye of the beautiful student council president, Yumi. But can he risk revealing his true identity to her, or will their budding romance be doomed before it begins? Plus, the samurai close in, seeking a final showdown. It will be up to Taro to balance his new life with his ancient destiny in this action-packed tale!