In Celestial Bane novels, the level of magic treasures and the level of characters were usually related. The level of a magic treasure was usually determined by the power of the magic treasure itself and the skill of the user. In Celestial Bane, the owner of a magic treasure could use the magic treasure to increase his character level, and the character level would also increase with the level of the magic treasure.
For example, in the novel, after Xiao Ding used the blood essence of the white ape to forge the Nine Nether Lamp, his character level increased from level 1 to level 2. The Nine Nether Lamp's power was also condensed from the White Ape's blood essence. Therefore, its power also increased along with Xiao Ding's character level.
In Celestial Bane, the relationship between the level of magic weapons and the level of characters was very important, which also affected the plot and the development of the story.
The magic of a returner in the manhwa and anime is very special. It usually comes with hidden powers and unique traits that drive the plot forward and make the character stand out. Also, it might have some rules and limitations that add to the complexity and excitement.
The specialness of a returner's magic lies in its rarity and the way it gives the character an edge in various situations. It might have unexpected effects or be tied to a profound backstory.
No. 'Manhwa' is a form of Korean comic or graphic novel, and it's not something that can be eaten in a literal sense. And in the context of leveling up in games or personal growth, consuming a manhwa novel as food is an absurd concept and has no real way of contributing to leveling up.