Yujin Ozora

Yuujin Oozora (大空 勇仁) is Haru Shinkai's classmate.

Appearance
Yuujin is a teenage boy with fair skin, spiky red hair, and green eyes. He wears a green shirt with yellow on the chest, white on the sleeves and three black lines on the shoulders, greenish grey shorts, dark green socks, and white and green sneakers wit dark green soles.

On October 31, he wears a black and brown skeleton costume.

Etymologies
Name used in Digimon Universe: Appli Monsters.
 * Yuujin Oozora (大空 勇仁)
 * Ja: Oozora (大空). Japanese surname that means "big sky". Possibly a reference to, the protagonist of , due to him being a soccer player.
 * Ja: Yuujin (勇仁). A Japanese masculine name that means "brave man". Possibly a pun on "yuujin" (友人) as he is Haru's friend.

Anime
On October 1, 2016, Yuujin is playing soccer outside of Fujimizaka Middle School to the cheers of his teammates and fans when Haru Shinkai is smacked in the face with a soccer ball. Yuujin decides to walk home with Haru, during which they discuss their belief in each others' main character qualities. Yuujin parts ways with Haru at this point. They eventually meet again when is posting embarrassing photos for all to see, and Ai Kashiki is one of the victims. Yuujin comforts her while Haru runs away and eventually deals with the problem. As Haru exits the AR-Field, Yuujin meets him again, and the two continue their talk, Yuujin commenting that kind people like Haru are amazing once they begin to move. They split up again, but Yuujin continues to watch Haru, his eye glowing ominously red. On October 8, Yuujin meets Haru at Kashinoki Books, where they listen to Takeru "Watson" Wato's tale of woe related to his malfunctioning navigation app. Hearing this story causes Ai's father to remember that she has not returned home from her errand. Haru immediately forms a search party, causing Yuujin to comment on Haru's unusually proactive approach. Yuujin and Watson participate in the search, and eventually Yuujin calls Haru to tell him that he found Ai and successfully escorted her home. This frees Haru to go after, the cause of the navigation app problems.

On October 15, Yuujin meets Haru after soccer practice and heads to Kashinoki Book with him. When Watson is bragging about his accomplishments in Fantasy Saga, Yuujin comments that he only downloaded the game, a sentiment that Haru agrees with. He bears witness to the resulting chaos spread by messing with data and then happily watches when everything returns back to normal. On October 31, Yuujin is among the friends Ai takes photos of to send to him. He tells them that Haru's going to be late because he's absorbed in a book.