Despite being an ethics teacher, and a grown adult, Momoha has many vices. She drinks alcohol on school grounds, even offering it to students. She's poor at saving money, and lives paycheck to paycheck while spending most of it on alcohol, food, and gambling. Momoha also used to smoke, though she has since quit. Momoha is also extremely perverted, going so far as to proposition sex with Rentarou within minutes of their first meeting. Though aware of her vices, she has given up on trying to kick her habits, and warns others not to follow in her footsteps. However, Momoha is also incredibly passionate as an educator, and has a strong work ethic, helping to weed the schoolyard daily while living on the campus grounds. She is also generous and filial, sponsoring new tools for the gardening club and regularly sending money home to her parents. Her belief is that having someone in one's life who treats others with care and kindness is more valuable than anything money can buy, and that being poor or needy is never an excuse to forget one's gratitude towards others.