Grandpa and Grandma Turn Young Again

An elderly husband and wife awake one morning to discover they have regained their youthful bodies, much to the surprise of their granddaughter Mino.

Shouzou and Ine receive a visit from their granddaughter Shiori, who has gotten into an argument with her accomplished but strict father.

Shouzou accidentally knocks over the giant hourglass in his recurring dream. When he wakes up, he discovers he has become old again.

Mino invites her grandparents to her school's cultural festival. After a mishap, Ine changes into a school uniform and feels like a student again.

Ine has reverted to who she was before she met Shouzou. Curious as to why she would have married him, she asks him to woo her once again.

Shouta finds himself accompanying Shouzou, Ine and Mino on a trip to Tokyo. Upon arrival, the Saitous go to visit their eldest daughter, Akemi.

The Saitous and Shouta arrive in Atami. Shouzou and Ine are excited to enjoy their honeymoon — but it means that Mino and Shouta must share a room.

Shiori meets Satoshi, a medical student researching legends about elderly folks turning young. Satoshi later reveals something about his grandparents.

Mino and Ine get dressed up in traditional garments for a summer festival. That evening, Ine and Shouzou enjoy the various booths together.

Shouta and Mino take shelter from the rain at a shrine. After lightning strikes close by, they suddenly see ghostly images of Shouzou and Ine.