Otohime Ryuuguu

Age: 16 Years Old
Height: 165 cm (5'5")

A girl with an obsessive crush on Tarou, who fears her greatly. It was thanks to Tarou's motivation that she changed from a chubby bullied elementary student to a thin beauty. Otohime is generally kind and polite to everyone, with the exception of girls who flirt with Tarou.

(Source: Wikipedia)