The president of the Environmental Protection Club. However, because the students at school are indifferent to environmental protection, he has no members. He cries often, and because his name is Nagi, his nickname is 'Sonagi' (Rain Shower). He has a timid and tearful personality. He is very interested in marine literature and believes that sirens, mermaids, and krakens actually exist. He is male, has green hair, wears square glasses, and is dressed in a zip-up hoodie.