The Summoned Samurai

500 years ago, a sword demon and a dragon mated, giving birth to a "half-human, half-dragon" that defies the laws of the world.In rainy Tokyo, a boy named Onishi Shinji is picked up by a dojo and lives a sleepy life as a "normal high school student."But when the "darkness" that targets Aya makes its move, the sleeping beast awakens.A secret technique that cuts through the "core" rather than the appearance - the ”Shin-gan”.In the modern world, disguised as everyday life, the battle between dragon and sword begins again.