One of Oku’s trademarks is tracing/photobashing real locations (Shinjuku, the subway, apartments) and then dropping his hand-drawn, slightly loose characters into them. The result? An uncanny valley effect. The world feels hyper-real, but the people inside it are panicking, bleeding, and dying messily. That disconnect is terrifying .
Oku doesn't use gray tones the way most mangaka do. His panels are stark: deep, crushing blacks against harsh white highlights. This isn’t just style—it’s storytelling. The darkness represents the unknown, the alien, the moral void of the Gantz room. When a character steps into the light, it feels earned.
Oku draws everything —gore, viscera, torn clothing, discarded smartphones, puddles of blood. Nothing is censored or stylized away. This hyper-detailed gore makes the stakes feel real. When a character gets stepped on by a giant alien, you see the flat, crushed shape. It’s grotesque, but it serves the story: This world is unfair, ugly, and doesn't care about you.
