Aoi Family

Parents
The twins' mother died when they were young. Even though they lived with their father, they had to rely on each other growing up.

Mother
The twins' mother is described as a kind and loving woman. According to Hinata, she would've wanted the family to get along.

She passed away when the twins were still children.

Appearance
Her appearance is currently unknown.

Trivia

 * When telling the twins about their birth, she mentioned that Hinata was taken out of the womb first. This made Hinata decide to take on the role of the "older brother".

Father
The twins' father is described as having been "loveless" and "not really 'decent'" in the past, following the death of his wife.

He appears to have vented his grief out on the twins, calling them "monsters" and expressing repulsion towards them due to being unable to tell them apart. This deeply influenced Hinata and Yuta's relationship with each other and with themselves, and caused Yuta to feel extremely hostile towards him.

Recently, he has attempted to show a more supportive side. He expresses genuine concern for the twins whenever they are involved in scandals, and seems to be checking up on them and congratulating them on their successes. He keeps contact with Hinata and has been attending the twins' performances as a guest.

At the moment, the twins treat him as a stranger, for better or worse. This is due to Hinata's wish to not become like him by treating people like they are less than human.

Appearance
His appearance is currently unknown.

Trivia

 * The twins' cats are technically under his care, since the twins did not bring them to the dorm.

Pet Cats
The twins are the owners of two pet cats. The cats are currently living with the twins' father at their house.

According to Hinata, the cats are "tough like [them]" and are fairly independent, to the point they could survive on their own (much like the twins). Yuta remarks that their cats are "not that wild", but they would have no trouble finding and eating the food at home.

Appearance
The cats' appearances are currently unknown.

Trivia

 * Prior to Yuta's Idol Story 2, the twins had not seen their cats since the day they moved to the dorms.