At the beginning of a new semester at university, Dandan, who had no distractions but only thought about how to improve the drone he made, seemed a little out of place in the sea of new members being recruited by various clubs. When Dandan threw a flying saucer from the square behind the school building to the coast to test the capture of the drone, the flying saucer accidentally flew onto a girl due to the influence of the sea breeze. This sudden accident became an opportunity for Dandan, who was originally a little autistic, to grow up gradually.