Dr. Ramune: Mysterious Disease Specialist Season 1 Episode 8

Aona’s head began producing popcorn because his father prohibited him from making the creations he loved. Concerned for Aona’s wellbeing, Kuro heads to the hospital where Aona’s mother is staying in order to seek her help. However, Aona ties balloons to the bag that’s now full of popcorn and releases it into the sky. Kuro and Ramune rush out of the hospital in order to recover the bag.