A cockroach?

Abel had guessed what sort of devil came to the Haimirich Empire, but he didn't have a clear image of who it could be. All he knew was that he could be a glutton who was obsessed with sweets. He didn't expect to see a young, chubby girl, who seemed she had just learned how to walk on her own, sitting on his throne.

"Grandpa!"

Abel looked down as the little girl hugged his thigh, looking up at Abel with a bright grin. He tilted his head to the side, studying the girl's adorable face, and then her silver hair with a hazel streak. 

"A cockroach?" he mumbled with genuine wonder in his voice. 

"Your — Your Majesty? What is — what is going on? Why are you...?" the minister near Abel stuttered in confusion, trailing off as soon as he met Abel's nonchalant eyes.