Great Detective Nobita

Synopsis

Gian summons Nobita to his place for a rough time. When Nobita arrives at Suneo's house, Suneo shows off his detective skills to Gian and Shizuka, accurately reading everything Nobita did on the way: drooling and napping, stumbling in a puddle, being barked at by a dog. Suneo announces he's studied 'Introduction to Deduction' and is opening a detective agency. Nobita gets Doraemon's 'Associative Deduction Magnifying Glass' and challenges Suneo to a detection showdown... but...!?