|Family||Hannah Summerhaven (sister)|
|Favorite Brand(s)||Brilliant Prince|
|Voice Actress||Yoshimasa Hosoya
Haylo Summerhaven is one of the supporting characters of the series. Unlike his sister, he is the average height of a man his age. He is a Celeb type idol. His brand is Brilliant Prince. This character is RPed with GanbareHannahChan.
Haylo has long brown hair that goes to his shoulders. He has brown eyes, like his sister.
In the PriPara world, he wears a black, fluffy sweater with soft pants. His choice in clothing is soft in general, as he says he likes to wear things that make him warm and comfortable, as he hates being cold. However, he doesn't mind going without a shirt when swimming or in the house.
Haylo has an open and welcoming personality to everyone. He adores women and cares for them, even as a child. When he was a child, he jumped for joy when he heard he was getting a sister. He has a relaxing and gentle atmosphere about him that easily calms others, mainly other women and young children.
In his free time, he likes to sing or hum simple melodies. His best friend, Kelsey has a daughter who he often takes care of with her, making him like a father figure towards her. As a result, Allee got so attached to him that she would cry if she were to spend one day without him.
He finds math and science hard for him as he believes that letters and numbers do not go well together. He also has very sloppy handwriting which nobody except his sister and his best friend's daughter can (somehow) read.
He gives the most calming hugs out of everyone in the family. His birthday is June 4.
Hannah Summerhaven - His sister.
Kelsey Gemspring - His best friend.
Haylo: Haylo originated from the word "halo" which is a ring that typically is shown above the head of an angel or an innocent person, which relates to his sweet personality.
Summerhaven: Summer is the third temperate season. Haven is a place of safety and refuge.
- Haylo is the youngest male character created by Hannah, at age 18.
- Even though he likes women, he does not want to become one, as he doesn't like to cross dress, However, he doesn't mind if someone else wants to.
- When he was a child, most of his friends were girls, and most of them accepted him.