Schoolgirl Ai is seated on a classroom desk, her legs spread and firmly restrained in the chair. Sensitive to tickling, she can't help but cry out as her sides and underarms are gently teased. When oil is applied to the soles of her feet and they're tickled too, she becomes completely overwhelmed. Her reactions are adorable yet close to desperate screams—her laughter mixed with helpless whimpers gives her an oddly poignant charm.