Grandpa and Grandma Turn Young Again - Season 1 Episode 4 Grandpa and Grandma and the Culture Festival
6.9024 minutes
At Mino's invitation, Shouzou and Ine decide to go to the culture festival at her school. Once there, an accident causes Ine to have to change clothes. When she puts on a sailor-style school uniform, she reverts to mannerisms she used in her school days.