Star Iron: Sweethunter

The protagonist, Kirima Shokuma, lost his father when he was young. On his sixth birthday, his only relative, his mother, was made into dark snacks by the mysterious organization Dark Snack Processing Factory. He was also captured by them and subjected to inhumane transformation. One day, Shi Zhen escaped from the laboratory with the help of a sugar-man uncle. The moment he opens the door... The story begins