What is the story of Magic Piggy Yoi Mying manga?

It's a story that involves elements of fantasy and adventure. The main character embarks on a journey filled with challenges and discoveries.

The sudden transformation of the piggy from a cute and normal animal to a menacing and monstrous one can be really scary. For example, when its eyes turn red or it grows in an unnatural way.

The main contrast lies in the content. Hentai manga often contains sexual and vulgar elements, but yoi manga can cover various genres like romance, adventure, or fantasy with less emphasis on adult themes. Also, the art styles and character designs might vary significantly between the two.

Hard core color yoi manga usually features intense and bold visuals, with vivid and sometimes extreme color palettes.

In a small village, there was a local legend about a cursed piggy. A group of kids once found an old, abandoned piggy in the woods. They decided to take it home. But soon, strange things began to happen. Their pets started disappearing. One by one, the kids also started having nightmares of the piggy. In the nightmares, the piggy was surrounded by a dark aura. One night, they all woke up to find the piggy standing at the foot of their beds, its body covered in a strange slime, and they were too terrified to move.

Hentai yoi manga often contains adult or explicit content that's not present in regular manga. Regular manga focuses more on story, characters, and various themes without such explicit elements.

I'm not sure exactly. Maybe it's a unique title or concept related to a specific manga, but I need more context to be sure.

Not many, actually. The yoi manga and its anime are quite similar in terms of plot and characters.