Junpei Ryuzouji  

, 龍造寺淳平

Karateka Junpei is an athletic 19-year-old man known for his exceptional fighting skills. He's also the only male member of their group, making him a valuable asset to them. However, his blunt communication style and attraction towards beautiful women often lead him into trouble. Junpei frequently engages in arguments with Celcia and is fascinated by curry and heliocentrism. Despite this, he dislikes fantasy stories and may be an atheist or agnostic. Although Junpei is smitten with Airi, he's unaware of Celcia's feelings for him despite their frequent disagreements. He carries a wallet containing membership cards from various dojos and a condom labeled "Use only with Airi." His IQ is approximately 86.