Maruo, Sueo

丸尾末男

Maruo is one of Maruko's classmates and serves as the male class president, always wanting to be admired by others. He wears very thick glasses because he is a very serious student who studies very hard every day; black lines appear on his face nearly all of the time, especially when he seems euphoric. He is paranoid that his classmates are seeking to replace him as male class president and will target classmates that stand out and do well to discourage them from running against him. His birthday is December 31, thus giving rise to his name.