Kunio

Kunio is one of the main characters of Lu Over the Wall. He is one of Kai's classmates. He is set to take over the Hinashi Shrine from his father, but also tries to enjoy his current life.

Personality
Kunio is most carefree and fun-loving of his friends. He is self-conscious, as he is shown being worried about future hair-loss. While he is somewhat of a pushover, he will go out of his way to stand up for his friends.

Appearance
Kunio is dark-skinned with dark brown hair. He wears a yellow tank top with short, green sweatpants and green flip-flops.

Story
Kunio's first appearance is him commenting on Kai's video, under his username "920". He makes his first physical appearance where he and Yuho greet Kai on their way to school.

Kai
Kunio treats Kai like his best friend, even if Kai isn't able to reciprocate those feelings. He seems to want to push Kai into being more enthusiastic, even if he isn't willing or motivated to. He sees great potential in his friend, and as the movie goes on, his go-lucky attitude seems to pay off in Kai's newfound appreciation for friendship.

Lu
Lu and Kunio seem to have some parallels in terms of personality. Their great enthusiasm and everlasting energy seems to keep Kai moving in the right direction from the beginning. When Lu and Kunio first met, Kunio was struck with surprise at first, but learned very quickly to appreciate the mermaid and her mystical singing.

Yuho
Kunio harbors a giant crush on Yuho. He always sticks up for her and is with her wherever she goes. Kunio becomes worried when he thinks Kai spent the night with Yuho. He admits that he thinks about her all the time, even knowing her favorite song, to her face, but plays it off a joke.

Trivia

 * Kunio was originally going to be light skinned and was going to have blonde hair.