"Ryuk is one of the significant characters in the Japanese manga ""Death God."" This manga revolves around the protagonist, Light Yagami, who finds a mysterious notebook that belongs to a death god named Ryuk. The notebook is capable of killing anyone whose name is written on it.

Ryuk is a death god who owns the death note, which he drops in the human world for his amusement. He is a tall, thin, and skeletal creature with red eyes and black wings. Ryuk is initially portrayed as an apathetic character who only observes Light's actions without interfering.

Despite his apathetic nature, Ryuk tends to get involved in Light's plans out of curiosity or mere amusement. He develops an interest in Light's strategy to become a god of a new world through the death note. Ryuk becomes somewhat fond of Light as he is one of the only humans brave enough to use the death note. Ryuk also enjoys apples, which become his favorite food during his time in the human world.

Ryuk's backstory is mostly unknown, but it is revealed that he was bored in his world, which led him to drop the death note in the human world. From that point on, Ryuk becomes a significant part of the story as his death note becomes a tool for Light's plans.

Despite being a death god, Ryuk has his set of morals. He never interferes with Light's plans, but he also doesn't assist him directly. Ryuk is merely a spectator, and like any death god, he has a nonchalant approach to human life.

In conclusion, Ryuk is arguably one of the most interesting characters in Death God. While he appears to be apathetic, Ryuk develops a liking towards Light and enjoys watching his plans unfold. Despite being a death god, it is clear that Ryuk has some morals and a curious nature about the human world."