a monochrome manga by tsutomu nihei, multiple girls, multiple boys, long hair, short hair, monochrome
The image is a collage of various black and white manga-style illustrations, showcasing different characters and themes from anime and manga. 

- The top left features a detailed, monstrous face with cracked, mechanical features and glowing eyes, set against a background of intricate, dark machinery. The face appears worn and aged, with a sinister expression.

- The top right depicts a character with short, spiky hair and a futuristic, helmet-like headgear. They have a serious, focused expression and are wearing a high-tech, armored jacket with various buttons and panels.

- In the center, there's a character with long, flowing hair, dressed in a high-collared, dark outfit. Their face is obscured by a mask with glowing, mechanical eyes, giving them an eerie, robotic appearance.

- The bottom left shows a character with long, straight hair, dressed in a high-collared, dark coat. They have a calm, thoughtful expression.

- The bottom right features a character with long, dark hair and a stern, determined expression. They are dressed in a simple, high-collared outfit, with a focus on their serious, intense gaze.

- The background is a dark, textured pattern with red, glowing, crack-like elements, adding a sci-fi, dystopian feel to the image.

The overall aesthetic, multiple girls, multiple boys, long hair, short hair, monochrome, looking at viewer, a monochrome manga by tsutomu nihei