Grandpa and Grandma on Their Honeymoon: Atami Arc
Shouzou, Ine, and the others arrive at a lovely inn in Atami. After some sightseeing and delicious food, it's time for bed. The plan was for the men and women to sleep in separate rooms, but Mino wants Shouzou and Ine to have time alone together.
Aired 19/05/2024EP 7 - Grandpa and Grandma on Their Honeymoon: Atami Arc

2024
Grandpa and Grandma Turn Young Again
The story of Jii-san Baa-san Wakagaeru follows Shouzou and Ine, an elderly couple who are living a quiet life in a farming village in Aomori Prefecture. After eating a mysterious apple that they discover on their apple farm, Shozo and Ine spontaneously regain their youth, but even after being reinvigorated they continue to live life at a grandparent-ly pace.
(Source: Crunchyroll News, edited)