The main characters are Desma, Celestine, and Hugo.
Desma, the protagonist, is a girl with glasses and studying entomology. Celestine is Desma's friend. Hugo, the eponymous, is a moth boy.
Desma wanted to win the science competition. She was going to show Hugo to the people but when she saw him being scared, she changed her mind and gave up the prize.
I thought this story is about caring about others. At first, Desma was only thinking about winning the prize but after meeting Hugo, she has changed.
