Jane is a competitive young woman with medium length brown hair. She is active, tough, has a can-do attitude, and is a professional Judo practitioner.

She also needs to wear diapers, . She is very embarrassed by this and tries to hide it, even occasionally refusing to wear them and wearing panties instead. Jane loses all her confidence when embarrassed.

Her younger sister is always the one who has to deal deal with Jane's messes, and is no longer discreet about it, much to Jane's humiliation. 