Goldfish

Goldfish enter the story through Yuto’s quiet effort to comfort his widowed grandmother. The aquarium becomes more than a pet project: it gives practical form to a bond between grandmother and grandson, and to a kind of care that persists through the family’s losses.

The Aquarium at Home

Not long after Rié’s second marriage and the second anniversary of her father’s death, Yuto and his grandmother went to a local pet shop and brought home goldfish for an old aquarium in the entrance. They had not told Rié or her husband, so both were surprised when they came home from work to find it installed. Yuto explained that his grandmother seemed lonely after his grandfather died and that he had seen her looking at the aquarium in the shed. He offered to look after the fish himself.

The choice reflects how closely Yuto had been watching his grandmother. He cleaned the aquarium with a garden hose, searched online for gravel, air pumps, and other supplies, went with her to buy them, and installed the tank. Rié was moved by the thought behind the gesture; her husband, watching Yuto, praised him as a thoughtful boy. The fish thus draw out a shared recognition of Yuto’s kindness, while the aquarium gives the grandmother and grandson a quiet activity that Rié had not known they were building together.

A Care That Lasts

Rié comes to understand the aquarium as evidence of an affection that does not need her to mediate it. Her mother and Yuto, both carrying grief and loneliness, have found a way to comfort one another. The fish are not simply a gift that marks a single moment: Yuto, who is easily bored and often abandons an interest once its novelty fades, never neglects their care or makes it a burden for the rest of the family.

That persistence becomes especially meaningful after his second father dies. Yuto keeps caring for the goldfish, even as the household absorbs another loss. Their continuing presence offers a modest counterpoint to grief: care can remain an everyday practice when the person who once witnessed it is gone.

Family Memory and Inheritance

The aquarium’s significance reaches beyond the grandmother’s mourning. Much later, when Yuto reflects on why his father treated him so kindly, he understands that his father had done for him what he had wished his own father would do for him. Rié adds that the tenderness was also an expression of his care for Yuto. The earlier praise of the boy’s thoughtfulness and his steady tending of the goldfish belong to this larger pattern of affection passed through the family.

The fish are not given an independent perspective in the episode; the narrative presents them through the human acts of noticing, giving, and tending. Yet their recurring care matters precisely because it is concrete and sustained. In a family marked by bereavement and changing parental bonds, the aquarium holds a small, durable form of attention: Yuto responds to another person’s sadness, and keeps responding after loss changes the household again.