Yoi ko(1998)

Yoi ko follows Esumi Fuuka, an elementary school student trapped in an adult's body. At 163 cm tall with a mature figure, she's often mistaken for a university student, but her childlike mind and innocent behavior create constant misunderstandings. The series explores the comedic and awkward situations that arise from this stark contrast between her physical appearance and mental development. As Fuuka navigates daily life, school, and social interactions, those around her struggle to reconcile what they see with how she actually thinks and behaves. The show balances humor with the genuine challenges of being perceived as something you're not, examining how appearances can deceive and lead to unexpected complications in relationships and everyday encounters.